离子色谱法同时检测水产品加工用水中10种阴离子  

Simultaneous determination of 10 anions in processing water of aquatic products by ion chromatography

作　　者：曹文军 李源 薛伟锋 Cao Wenjun;Li Yuan;Xue Weifeng(China Certifification&Inspection Group LiaoNing Co.Ltd.,Dalian 116600,China;Dalian Customs Technology Center,Dalian 116600,China)

机构地区：[1]中国检验认证集团辽宁有限公司,辽宁大连116600 [2]大连海关技术中心,辽宁大连116600

出　　处：《化学分析计量》2021年第11期46-49,共4页Chemical Analysis And Meterage

基　　金：辽宁省自然科学基金面上项目(20170540025)。

摘　　要：建立离子色谱法同时测定水产品企业加工用水中10种阴离子F-、ClO_(2)^(-)、BrO_(3)^(-)、Cl^(-)、ClO_(3)^(-)、NO_(2)^(-)、Br^(-)、NO_(3)^(-)、SO_(4)^(2-)和PO_(4)^(3-)。选用IonPac®AS19色谱柱(250 mm×4 mm),用KOH溶液梯度淋洗,以抑制电导检测器进行测定。10种阴离子在各自的质量浓度范围内与色谱峰面积呈良好的线性关系,相关系数均不小于0.9990,方法检出限为0.0005~0.005 mg/L。6次重复测定结果的相对标准偏差为0.95%~4.69%,样品加标回收率为80.0%~97.2%。该方法灵敏度高、简便、快速,适用于水产品企业加工用水中10种阴离子F^(-)、Cl^(-)、NO_(2)^(-)、Br^(-)、BrO_(3)^(-)、NO_(3)^(-)、SO_(4)^(2-)、PO_(4)^(3-)、ClO_(2)^(-)和ClO_(3)^(-)的检测。A method for simultaneous determination of ten anions including F^(-),ClO_(2)^(-),BrO_(3)^(-),Cl^(-),ClO_(3)^(-),NO_(2)^(-),Br^(-),NO_(3)^(-),SO_(4)^(2-)and PO_(4)^(3-)in processing water of aquatic products by ion chromatography was established.Ten anions were separated on IonPac®AS19 analytic column(250 mm×4 mm)with KOH solution as eluent and determined by suppressed conductivity detector.Ten anions showed a good linear relationship between the concentration and chromatographic peak area,and the correlation coefficient was not less than 0.9990,the detection limit was 0.0005-0.005 mg/L.The relative standard deviations of determination results were 0.95%-4.69%(n=6),and the recoveries were 80.0%-97.2%.The method is sensitive,simple,rapid,and can meet the analysis demand of ten anions in the processing water of aquatic products.

关 键 词：离子色谱法 加工用水 阴离子 水产品 

分 类 号：O657.7[理学—分析化学]