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Kijung Paeng - One of the best experts on this subject based on the ideXlab platform.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:Abstract For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrin-based ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10–20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl−, respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Cl-based membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference ( log K POT Cl − ,sal − =1.1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrinbased ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10‐20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl ˇ , respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Clbased membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference (log K POTˇ;salˇa 1:1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated. # 1998 Elsevier Science B.V. All rights reserved.
In Jun Yoon - One of the best experts on this subject based on the ideXlab platform.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:Abstract For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrin-based ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10–20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl−, respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Cl-based membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference ( log K POT Cl − ,sal − =1.1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrinbased ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10‐20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl ˇ , respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Clbased membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference (log K POTˇ;salˇa 1:1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated. # 1998 Elsevier Science B.V. All rights reserved.
Young Tae Jeon - One of the best experts on this subject based on the ideXlab platform.
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perioperative hyperchloremia and its association with postoperative acute kidney injury after craniotomy for primary brain tumor resection a retrospective observational study
Journal of Neurosurgical Anesthesiology, 2019Co-Authors: Chae Yong Kim, Young Tae Jeon, Jungwon HwangAbstract:Background Hyperchloremia is known to influence postoperative outcomes and may result in postoperative acute kidney injury (AKI). This study sought to investigate whether hyperchloremia was associated with postoperative AKI in patients who underwent surgery for primary brain tumor resection. Materials and methods This is a retrospective, observational study of patients who underwent craniotomy for primary brain tumor resection at a single tertiary care hospital between January 2005 and October 2017. Maximum levels of Serum Chloride (mmol/L) measured on postoperative days (PODs) 0 to 3 and increase in Serum Chloride (mmol/L), (maximum Serum Chloride-baseline Serum Chloride before surgery) were measured. We examined whether perioperative hyperchloremia was associated with postoperative AKI during PODs 0 to 3. Univariate and multivariate logistic regression analyses were used in this study. Results A total of 726 patients were included in the analysis; of these, 39 (5.4%) were diagnosed with postoperative AKI during PODs 0 to 3. The risk of postoperative AKI was associated with maximum Chloride levels (odds ratio, 1.10; 95% confidence interval, 1.02-1.19; P=0.015) and with an increase in Serum Chloride levels during PODs 0 to 3 (odds ratio, 1.11; 95% confidence interval, 1.04-1.19; P=0.004). Conclusions Our study shows that perioperative hyperchloremia during PODs 0 to 3 was associated with an increased risk of postoperative AKI during this period after craniotomy for primary brain tumor resection.
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association of perioperative hyperchloremia and hyperchloremic metabolic acidosis with acute kidney injury after craniotomy for intracranial hemorrhage
World Neurosurgery, 2019Co-Authors: Young Tae Jeon, Hyemin Sohn, Seung Hyun ChungAbstract:Background The present study evaluated the relationships among perioperative hyperchloremic metabolic acidosis (HCA), hyperchloremia, and postoperative acute kidney injury (AKI) in patients who had undergone craniotomy for intracranial hemorrhage (ICH). Methods The present retrospective cohort study included adult patients who had undergone craniotomy for traumatic or spontaneous ICH from January 2005 to December 2017. The association of perioperative hyperchloremia (Serum Chloride [Cl−] >110 mmol/L during postoperative days 0–3), an increase in Cl− levels (maximum Cl− level in postoperative days 0–3 minus the baseline Cl− level before surgery), and perioperative HCA (Cl− >110 mmol/L; pH Results A total of 968 patients were included. Of these patients, 117 (12.1%) had postoperative AKI. The multivariable logistic regression analysis showed that the development of HCA was associated with a 1.850-fold increase in the incidence of postoperative AKI (odds ratio [OR], 1.850; 95% confidence interval [CI], 1.102–3.106; P = 0.020). However, hyperchloremia was not significantly related to the incidence of postoperative AKI (P = 0.207). Additionally, the presence of hyperchloremia and an increase in Cl− levels were both associated with an increased incidence of HCA (hyperchloremia group: OR, 2.162; 95% CI, 1.490–3.138; P Conclusions Perioperative HCA was independently related to an increased incidence of AKI after craniotomy for ICH. An increase in Cl− levels and perioperative hyperchloremia were associated with increased development of HCA but were not significantly related to the development of postoperative AKI.
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hyperchloremia and postoperative acute kidney injury a retrospective analysis of data from the surgical intensive care unit
Critical Care, 2018Co-Authors: In Ae Song, Sejoong Kim, Sung Yoon Lim, Jungwon Hwang, Jin Hee Kim, Young Tae JeonAbstract:Whether perioperative hyperchloremia can induce postoperative acute kidney injury (AKI) is controversial. We investigated the association between perioperative hyperchloremia and postoperative AKI in patients admitted to the intensive care unit (ICU) after surgery. We performed a retrospective observational study of patients admitted to the surgical ICU at a single tertiary care hospital between January 2011 and June 2016. Our primary objective was to determine whether hyperchloremia or an increase in Serum Chloride levels was associated with postoperative AKI. Perioperative hyperchloremia was defined as Serum Chloride levels ≥ 110 mmol·L− 1 during postoperative days (PODs) 0–3. The increase in Serum Chloride levels was defined as the difference between preoperative and maximum postoperative Serum Chloride levels during the first 3 days after surgery. Of the 7991 patients included in the final analysis, 1876 (23.5%) developed hyperchloremia during PODs 0–3, and 1187 (14.9%) developed postoperative AKI. Exposure to hyperchloremia during the first 3 days after surgery was not associated with postoperative AKI (odds ratio, 1.09; 95% confidence interval, 0.80–1.49; P = 0.571). However, among patients with preoperative chronic kidney disease stage ≥ 3 (estimated glomerular filtration rate 6 mmol·L− 1 in Serum Chloride levels than in patients with an increase ≤ 1 mmol·L− 1 (odds ratio, 1.42; 95% confidence interval, 1.09–1.84; P = 0.009). In addition, the incidence of postoperative AKI stage ≥ 2 was not associated with exposure to hyperchloremia or with the increase in Serum Chloride levels during PODs 0–3, regardless of preoperative kidney function. Exposure to perioperative hyperchloremia is not associated with postoperative AKI in surgical ICU patients. However, in patients with moderate-to-severe chronic kidney disease (stage ≥ 3), a substantial perioperative increase in Serum Chloride levels may reflect a higher risk of AKI.
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Hyperchloremia and postoperative acute kidney injury: a retrospective analysis of data from the surgical intensive care unit
'Springer Science and Business Media LLC', 2018Co-Authors: In Ae Song, Sejoong Kim, Sung Yoon Lim, Jungwon Hwang, Jin Hee Kim, Young Tae JeonAbstract:Abstract Background Whether perioperative hyperchloremia can induce postoperative acute kidney injury (AKI) is controversial. We investigated the association between perioperative hyperchloremia and postoperative AKI in patients admitted to the intensive care unit (ICU) after surgery. Methods We performed a retrospective observational study of patients admitted to the surgical ICU at a single tertiary care hospital between January 2011 and June 2016. Our primary objective was to determine whether hyperchloremia or an increase in Serum Chloride levels was associated with postoperative AKI. Perioperative hyperchloremia was defined as Serum Chloride levels ≥ 110 mmol·L− 1 during postoperative days (PODs) 0–3. The increase in Serum Chloride levels was defined as the difference between preoperative and maximum postoperative Serum Chloride levels during the first 3 days after surgery. Results Of the 7991 patients included in the final analysis, 1876 (23.5%) developed hyperchloremia during PODs 0–3, and 1187 (14.9%) developed postoperative AKI. Exposure to hyperchloremia during the first 3 days after surgery was not associated with postoperative AKI (odds ratio, 1.09; 95% confidence interval, 0.80–1.49; P = 0.571). However, among patients with preoperative chronic kidney disease stage ≥ 3 (estimated glomerular filtration rate 6 mmol·L− 1 in Serum Chloride levels than in patients with an increase ≤ 1 mmol·L− 1 (odds ratio, 1.42; 95% confidence interval, 1.09–1.84; P = 0.009). In addition, the incidence of postoperative AKI stage ≥ 2 was not associated with exposure to hyperchloremia or with the increase in Serum Chloride levels during PODs 0–3, regardless of preoperative kidney function. Conclusions Exposure to perioperative hyperchloremia is not associated with postoperative AKI in surgical ICU patients. However, in patients with moderate-to-severe chronic kidney disease (stage ≥ 3), a substantial perioperative increase in Serum Chloride levels may reflect a higher risk of AKI
Insook Rhee Paeng - One of the best experts on this subject based on the ideXlab platform.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:Abstract For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrin-based ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10–20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl−, respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Cl-based membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference ( log K POT Cl − ,sal − =1.1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrinbased ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10‐20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl ˇ , respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Clbased membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference (log K POTˇ;salˇa 1:1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated. # 1998 Elsevier Science B.V. All rights reserved.
Jae Ho Shin - One of the best experts on this subject based on the ideXlab platform.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:Abstract For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrin-based ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10–20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl−, respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Cl-based membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference ( log K POT Cl − ,sal − =1.1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated.
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potentiometric behavior of metalloporphyrin based ion selective electrodes use of silicone rubber matrix for Serum Chloride analysis
Analytica Chimica Acta, 1998Co-Authors: In Jun Yoon, Jae Ho Shin, Insook Rhee Paeng, Kijung PaengAbstract:For the proper design of a miniaturized all-solid-state Chloride-selective electrode for Serum analysis with metalloporphyrinbased ionophores, the potentiometric behavior of four different metalloporphyrins, i.e., manganese(III) tetraphenylporphyrin Chloride [Mn(TPP)Cl], manganese(III) octaethylporphyrin Chloride [Mn(OEP)Cl], indium(III) tetraphenylporphyrin Chloride [In(TPP)Cl] and indium(III) octaethylporphyrin Chloride [In(OEP)Cl], doped in a one-component room temperature vulcanizing-type silicone rubber (SR) matrix were examined. Particular attention was paid to find a membrane formulation with minimal effect of salicylate because this interference is often the cause of a large positive error in Serum Chloride analysis. In general, the use of 10‐20 wt% of plasticizer (e.g., o-nitrophenyl octyl ether (NPOE) and dibutyl sebacate (DBS)) was necessary for the ion carriers in SR to induce proper potentiometric response to Chloride. On the other hand, In(TPP)Cl doped in SR matrix did not show any electrochemical activity regardless of the type of plasticizer employed. Mn(OEP)Cl or In(OEP)Cl doped in SR matrix with NPOE plasticizer exhibited super-Nernstian response (70.8 and 84.0 mV/pCl ˇ , respectively), while those with DBS plasticizer show sub-Nernstian behavior. Of the two octaethyl porphyrins, the In(OEP)Clbased membrane exhibited higher slope, 53.7 mV/decade, to Chloride with reduced salicylate interference (log K POTˇ;salˇa 1:1 with DBS). All-solid-state electrodes modified with In(OEP)Cl/SR/DBS membranes have been prepared and their utility for Serum Chloride measurement have been demonstrated. # 1998 Elsevier Science B.V. All rights reserved.
