鸡配合饲料中钙、磷元素标准物质研制  

Development of Reference Material for Calcium and Phosphorus in Chicken Formula Feed

作　　者：严华 徐思远[1] 胡深[2] 张祯昊 贾铮[1] 樊霞[1] YAN Hua;XU Siyuan;HU Shen;ZHANG Zhenhao;JIA Zheng;FAN Xia(Institute of Quality Standard and Testing Technology for Agro-Products,Chinese Academy of Agricultural Sciences,Beijing 100081,China;Hubei Province Institute of Veterinary Drug,Wuhan 430070,China)

机构地区：[1]中国农业科学院农业质量标准与检测技术研究所,北京100081 [2]湖北省兽药监察所,武汉430070

出　　处：《计量科学与技术》2023年第10期62-69,共8页Metrology Science and Technology

基　　金：新疆维吾尔自治区“两区”科技发展计划项目(2023LQ02002)。

摘　　要：研制了鸡配合饲料中钙、磷元素标准物质,使用微波消解进行样品前处理,电感耦合等离子体发射光谱仪(ICP-OES)对标准物质的钙、磷元素含量进行了定值,对样品的均匀性和稳定性进行了分析,评定了标准物质的不确定度。研究结果表明,鸡配合饲料标准物质样品具有良好的均匀性和稳定性,标准物质的钙含量标准值为1.221%,磷含量标准值为0.687%,扩展不确定度分别为0.117%和0.091%(k=2)。该标准物质的研制满足了饲料质量安全监测的需求,并为配合饲料中钙和磷元素分析的校准、质量控制和方法验证提供了技术支持。To address the needs of food safety monitoring,a certified reference material(CRM)for calcium and phosphorus in chicken formula feed was developed.The CRM underwent sample pretreatment using microwave digestion,followed by quantification of calcium and phosphorus content using an inductively coupled plasma optical emission spectrometer(ICP-OES).The homogeneity and stability of the CRM were systematically analyzed,and uncertainties were evaluated.The results demonstrate that the CRM exhibits excellent homogeneity and stability,with certified values of 1.221%for calcium and 0.687%for phosphorus,and expanded uncertainties of 0.117%and 0.091%(k=2),respectively.The CRM can be stored for 16 months at−18℃.This development fulfills the requirements for feed quality and safety monitoring and provides essential technical support for calibration,quality control,and method validation in the analysis of calcium and phosphorus in formulated feed samples.

关 键 词：计量学 鸡配合饲料 钙 磷 标准物质 定值 不确定度 

分 类 号：TB99[一般工业技术—计量学]