摘要
GB/T15063-2009《复混肥料》规定了复混肥料中的检测方法,标GB/T8572-2010《复混肥料中总氮含量的测定蒸馏后滴定法》、GB/T8573-2017《复混肥料中有效磷含量的测定》、GB/T8574-2010《复混肥料中钾含量的测定四苯硼酸钾重量法》规定了三个主要元素的检测方法,对未标识配比的样品没有明确方法。实际工作中,从最佳滴定量、最佳沉淀量的角度对未标识样品进行初步称样量的确定,然后分析,再次准确称量样品量,最后校准的三步骤方法,达到检测的目的。
The national standard GB/T15063-2009 "Mixed Fertilizers" stipulates the detection methods in compound fertilizers.Determination of effective phosphorus content in fertilizers ",GB/T8574-2010" Determination of potassium content in compound fertilizers,potassium tetraphenylborate gravimetric method ",the detection methods of the three main elements in the above three standards,There is no clear method for the sample.In actual work,from the perspective of the best titration and the best precipitation,the initial weighing of the unlabeled sample is determined,then analyzed,and the sample is accurately weighed again.The final three-step calibration method achieves the purpose of detection.
出处
《化工设计通讯》
CAS
2020年第7期146-146,150,共2页
Chemical Engineering Design Communications
关键词
未标识
肥料
检测
方法
探讨
unmarked
fertilizer
test
method
discussion
