CAJ | 학술논문

目的：建立木耳中磷化铝残留量的顶空-气相色谱检测方法。方法将样品称量于顶空进样瓶中,加入硫酸溶液,使磷化铝与酸反应生成磷化氢,用气相色谱-氮磷检测器检测磷化氢的含量,得到样品中磷化铝的含量。结果磷化铝在0.05~5.00 mg线性关系良好,相关系数0.995,加标回收率在83.4%~112.6%,相对标准偏差为9.4%~10.2%之间,方法检出限为0.02 mg/kg。结论该方法快速简便、灵敏度高、准确性好,满足相关法规的限量要求,可用于木耳中磷化铝含量的实际检测工作。
목적：건립목이중린화려잔류량적정공-기상색보검측방법。방법장양품칭량우정공진양병중,가입류산용액,사린화려여산반응생성린화경,용기상색보-담린검측기검측린화경적함량,득도양품중린화려적함량。결과린화려재0.05~5.00 mg선성관계량호,상관계수0.995,가표회수솔재83.4%~112.6%,상대표준편차위9.4%~10.2%지간,방법검출한위0.02 mg/kg。결론해방법쾌속간편、령민도고、준학성호,만족상관법규적한량요구,가용우목이중린화려함량적실제검측공작。
ObjectiveTo determine aluminium phosphide residue in the agaric by headspace-gas chroma-torgraphy method.Methods The aluminium phosphide in the sample weighed in the headspace vial was reacted with sulfuric acid solution to form phosphine, which was detected by a gas chromatorgraphy equipped with a Ni-trogen-phosphorus detector, then the content of aluminium phosphide was quantitated based on the content of phosphine.ResultsThe method showed a good linearity for aluminium phosphide in the range of 0.05~5.00 mg , the correlation coefficient (r) was 0.995, the recoveries were ranged from 83.4%~112.6%, the relative standard deviations were 9.4%~10.2% and the limit of quantification (LOQ) was 0.02 mg/kg.Conclusion This method is simple, rapid, sensitive and accurate, and can meet the requirement of the relevant limit regulations, which can be used for the determination of aluminium phosphide in agaric.