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《化学分析计量》 2018年第02期
DOI:10.3969/j.issn.1008-6145.2018.02.008
淋洗液在线发生离子色谱法测定血液 透析水中的F-,NO3-,SO42-
武婷,申剑,康乐
山西省分析科学研究院,太原 030006 
Determination of F-,NO3-,SO42- in hemodialysis water by ion chromatography with on line eluent generator
WU Ting, SHEN Jian, KANG Le
Shanxi Academy of Analytical Science, Taiyuan 030006, China 
摘要:建立血液透析水中F-,NO3-,SO42-的淋洗液在线发生-离子色谱检测法。采用ICS-1100型离子色谱仪,IonPac AS19型(250 mm×4 mm)色谱柱,淋洗液自动发生装置在线产生高纯度的KOH溶液作为淋洗液,流量为1 mL/min,以电导检测器检测,色谱峰面积外标法定量。3种阴离子的质量浓度与色谱峰面积在测定范围内呈良好的线性关系(r≥0.9998),检出限为0.002~0.01 mg/L,测定结果的相对标准偏差为0.26%~0.88%(n=6),加标回收率为98.0%~101.1%。该法操作简单,分析快速,灵敏度高,重现性好,能够准确检测血液透析水中的F-,NO3-,SO42-,可用于血液透析水的质量控制。 
Abstract:A method was developed for determining F-, NO3-, SO42- in hemodialysis water by ion chromatography with on-line eluent generator. The ion chromatograph of ICS-1100 was used with chromatographic column of Ionpac AS19(250 mm×4 mm) and on-line eluent generator which produced high-purity KOH automatically. The flow rate was 1 mL/min and the inorganic anions of F-, NO3- and SO42- were detected by conductivity detector, the external standard method was used for the quantification by peak area of chromatograph. The mass concentration of 3 inorganic anions was linear with peak area of chromatograph in the detection range with the correlation coefficient no less than 0.9998. The detection limits were in the range of 0.002-0.01 mg/L, and the relative standard deviations of detection results were between 0.26% and 0.88%(n=6), and the recoveries were between 98.0% and 101.1%. The method is simple, speedy, sensitive, it is suitable for determination of F-, NO3-, SO42- in hemodialysis water, which can be used for quality control of hemodialysis water. 
关键词:淋洗液在线发生;离子色谱法;血液透析水;氟离子;硝酸根离子;硫酸根离子 
Keywords:on-line eluent generator; ion chromatography; hemodialysis water; F-; NO3-; SO42- 
本文引用格式:
武婷,申剑,康乐. 淋洗液在线发生离子色谱法测定血液透析水中的F-,NO3-,SO42-[J].化学分析计量,2018,27(2):32-35.
WU T,SHEN J,KANG L. Determination of F-,NO3-,SO42- in hemodialysis water by ion chromatography with on line eluent generator[J]. Chemical analysis and meterage,2018,27(2):32-35. 

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