固废氯化钠中四乙基氯化铵的离子色谱法检测

建立了用于工业副产品固废物氯化钠中四乙基氯化铵含量检测的抑制电导离子色谱分析方法.工业固废物氯化钠经称量、溶解、定容后,经过0.22 μm的过滤头和On Guard C18前处理柱后,进样分析.离子色谱条件：Ionpac CS17（250 mm×4 mm）阳离子分析柱和Ionpac CG17（50 mm×4 mm）阳离子保护柱,流动相为20 mmol/L甲磺酸溶液,流速0.8 ml/min,25 μL进样,采用抑制电导检测器,抑制电流为100 mA.待测物四乙基氯化铵在1.0 ～ 40.0 mg/L浓度范围内线性关系良好,线性方程y=0.066x-0.016,线性相关系数为0.9999,相对标...

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Published in实验室研究与探索 Vol. 34; no. 5; pp. 36 - 38
Main Author 栾绍嵘 李艺萍 姜歆瑶 竺佳炳
Format Journal Article
LanguageChinese
Published 华东理工大学分析测试中心,上海,200237 2015
Subjects
四乙基氯化铵
氯化钠
离子色谱法
氯化钠
tetraethyl ammonium chloride (TEAC)
ion chromatography (IC)
四乙基氯化铵
离子色谱法
sodium chloride
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ISSN1006-7167

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Summary:建立了用于工业副产品固废物氯化钠中四乙基氯化铵含量检测的抑制电导离子色谱分析方法.工业固废物氯化钠经称量、溶解、定容后,经过0.22 μm的过滤头和On Guard C18前处理柱后,进样分析.离子色谱条件：Ionpac CS17（250 mm×4 mm）阳离子分析柱和Ionpac CG17（50 mm×4 mm）阳离子保护柱,流动相为20 mmol/L甲磺酸溶液,流速0.8 ml/min,25 μL进样,采用抑制电导检测器,抑制电流为100 mA.待测物四乙基氯化铵在1.0 ～ 40.0 mg/L浓度范围内线性关系良好,线性方程y=0.066x-0.016,线性相关系数为0.9999,相对标准偏差为0.01％,检出限（以信噪比S/N=3计）为0.006mg/L,加标回收率在99.2％ ～ 101.7％.该方法用于实际工业副产品的固废物氯化钠中四乙基氯化铵的检测,结果令人满意.
Bibliography:A method of ion chromatography （IC） was developed for the determination of tetraethyl ammonium chloride （TEAC） in the sodium chloride by-products. The sodium chloride was dissolved with deionized water and filtrated by a 0.22 μm nylon filter membrane and On Guard C18 column. The analytical column was Dionex Ionpac CS17 （250 mm × 4 ram） with a guard column Ionpac CG17（50 mm ×4 mm）. The eluent was 20 mmol/L MSA with 0.8 mL/min flow rate. The detection was performed by a suppressed conductivity detector. The quantitative analysis was external standard calibration curve. The linear range of TEAC in the method was 1.0 - 40.0 mg/L（ r^2 = 0. 9999） , the average recovery was 100.5% with the relative standard deviation 0.01% , and the detection limit （S/N = 3） was 0. 006 mg/L. The method has been applied to determine contents of tetraethyl ammonium chloride （TEAC1） in sodium chloride of the industrial by-products with satisfactory results.
LUAN Shao-rong, LI Yi-ping, JIANG Xin-yao, ZHU Jia-bing （Research Center of Anal
ISSN:1006-7167