腐植酸水溶肥料中硼检测工艺研究  

Research on boron detection process for humic acid water-soluble fertilizer

作　　者：袁婷 张冬梅 王铭也 张琪玮 董明君 YUAN Ting;ZHANG Dongmei;WANG Mingye;ZHANG Qiwei;DONG Mingjun(Gansu Provincial Institute of Product Quality Supervision and Inspection,Lanzhou 730050,China;Agriculture Products Quality and Safety Testing Center of Anding District,Dingxi 743000,China;Qingyang Ward Petrochemical Co.,Ltd.,Qingyang 745000,China)

机构地区：[1]甘肃省产品质量监督检验研究院,甘肃兰州730050 [2]定西市安定区农产品质量安全检测中心,甘肃定西743000 [3]庆阳沃德石油化工有限责任公司,甘肃庆阳745000

出　　处：《磷肥与复肥》2023年第12期45-46,52,共3页Phosphate & Compound Fertilizer

基　　金：甘肃省市场监督管理局科技计划项目(SSCJG-ZJ-202106)。

摘　　要：采用马弗炉加热灰化样品,选用艾氏卡试剂作为灰化助剂,使得样品滤液澄清,避免了后续腐植酸水溶肥料中硼测定过程中肥料本身颜色对显色反应的干扰。探究灼烧温度、灼烧时间、灼烧试剂用量对测定结果的影响,在最优条件下样品加标回收率为97.85%~101.60%,相对标准偏差为0.454%~3.033%,具有较高的准确度和精密度。The sample is heated in muffle furnace with a mixed reagent of Escherichia coli as the ashing agent,the filtrate of the sample is clarified,avoiding the interference of the color of the fertilizer itself on the color reaction during the subsequent determination of boron in humic acid water-soluble fertilizer.The effects of calcination temperature,calcination time and ashing reagent dosage on the determination results are explored,the recovery rate of the sample under optimal conditions is 97.85%-101.60%,and the relative standard deviation is 0.454%-3.033%,the method has high accuracy and precision.

关 键 词：腐植酸水溶肥 硼 加热灰化 

分 类 号：O657.32[理学—分析化学]