摘要
目的:建立电感耦合等离子体光谱法测定食品中硼的方法。方法:样品经硝酸高压密闭消解,用电感耦合等离子体光谱法对硼含量进行测定。结果:方法在0 mg/L～10 mg/L范围内呈良好线性,线性系数为0.99999,方法检出限为0.44 mg/kg,6次测定的相对标准偏差小于4%,国家标准参考物质的分析结果在证书值范围内。结论:该方法灵敏准确,线性范围宽,适用于食品中硼的测定。
Objective：A method to determine boron in food was established by ICP - OES. Methods： The samples were di- gested by HNO3 in high - pressure dosed - vessel, then the solution was analyzed by ICP - OES to determine the content of bo- ron. Results： The calibration curve showed good linearity in the range of 0 mg/L - 10 mg/L with linear coefficient of 0.99999, the detection limit was 0.44 mg/kg, relative standard deviation was below 4.0%, the result of analyzing standard material was in the range of certificate value. Conclusion： The method showed wide linear range, good precision and accuracy, it was suitable for determination of boron in food.
出处
《中国卫生检验杂志》
北大核心
2012年第2期219-220,共2页
Chinese Journal of Health Laboratory Technology
