CAJ | 학술논문

根据JJ F1059-1999《测量不确定度评定与表示》技术规范的要求[1]，对火焰原子吸收法测定饲料中铬的含量进行不确定度评估，方法考虑不确定度的来源包括样品质量的称量、标准溶液配制、试剂空白中铬浓度、重复测量样品及回收率等因素，计算出各种不确定度分量并将其合成，以此计算出饲料中铬测定结果的不确定度，结果为17.0±1.7mg/kg。结果表明，影响铬测量不确定度的主要因素有重复性测量和回收率引入的不确定分量。
근거JJ F1059-1999《측량불학정도평정여표시》기술규범적요구[1]，대화염원자흡수법측정사료중락적함량진행불학정도평고，방법고필불학정도적래원포괄양품질량적칭량、표준용액배제、시제공백중락농도、중복측량양품급회수솔등인소，계산출각충불학정도분량병장기합성，이차계산출사료중락측정결과적불학정도，결과위17.0±1.7mg/kg。결과표명，영향락측량불학정도적주요인소유중복성측량화회수솔인입적불학정분량。
According to JJF1059-1999 measμrement μncertainty evalμation and the reqμirements of technical specifica?tion [1],Evalμating the μncertainty of chromiμm content in feed with the method of flame atomic absorption .The method considering the soμrces of μncertainty ,inclμding the sample qμality of weighing,preparating standard solμtion,the chro?miμm concentration in blank reagent,repeated measμring sample ,recovery and the other factors. Calcμlating and synthe?sising the μncertainty components. Calcμlating the resμlts of the μncertainty what chromiμm concentration in feed.The resμlt was 17.0±1.7 mg/kg. The resμlts showed that the main factors that inflμenced the μncertainty of chromiμm was theμncertainty component of repetiting measμre and the recovery.