顺序注射分析法测定自来水中硫酸盐  

The determination of sulphate in tap water by sequence injection analysis method

作　　者：李靖 赵福全[2] 

机构地区：[1]齐齐哈尔市产品质量监督检验所,黑龙江齐齐哈尔161006 [2]齐齐哈尔大学,黑龙江齐齐哈尔161006

出　　处：《齐齐哈尔大学学报（自然科学版）》2008年第5期82-84,共3页Journal of Qiqihar University(Natural Science Edition)

摘　　要：建立了在线沉淀顺序注射分析法测量了自来水中硫酸盐的方法。沉淀稳定剂:氯化钠-盐酸-甘油-乙醇和氯化钡;载液:蒸馏水。对沉淀体系中影响显色的诸因素进行了实验研究。方法检测限为10 mg/L,线性范围10～1 000 mg/L,r=0.9993。对65.6 mg/L自来水样品进行11次平行测量,测得相对标准偏差为3.3%。回收率97.2%。检测速度70次/h。结果:方法准确、可靠,具有实用价值。The on line determination method of Sulphate in tap water by sequence injection analysis was built. Deposition stable reagent was sodium chloride-hydroehlorie acid-glycerin-ethanol and chloridize barium, carrier liquid was distilled water. The factors related to the color reaction were studied. The method detection limit was 10mg/L.linear range was 10-1000mg/L, regression coefficient was 0.9993.By a 11 times parallel determination of tap water sample with a concentration of 65.6mg/L, the DV was 3.3%, recovery was 97.2%.The test speed was 70times/hour.The result show that this method was exact, dependable and applied.

关 键 词：硫酸盐 顺序注射 自来水 

分 类 号：O655.29[理学—分析化学]