CAJ | 학술논문

目的：对铬天青S光度法检测铝含量的国标法进行改进研究。方法：利用测定铝标准曲线的方法，研究 CAS-Al-CTAB三元显色体系测定铝的最佳实验条件。结果：在最佳实验优选条件下，铝在0.1～10.0μg/25 mL范围内，回归方程为Y=0.1756X-0.0149，r =0.9996，样品加样回收率103.3%，RSD＝1.5%。结论：与国标法相比，此显色测定方法耐用性好、稳定性高，准确度好，且测定灵敏度和线性范围均明显改善，为建立食品中微量铝含量的测定提供了方法。
목적：대락천청S광도법검측려함량적국표법진행개진연구。방법：이용측정려표준곡선적방법，연구 CAS-Al-CTAB삼원현색체계측정려적최가실험조건。결과：재최가실험우선조건하，려재0.1～10.0μg/25 mL범위내，회귀방정위Y=0.1756X-0.0149，r =0.9996，양품가양회수솔103.3%，RSD＝1.5%。결론：여국표법상비，차현색측정방법내용성호、은정성고，준학도호，차측정령민도화선성범위균명현개선，위건립식품중미량려함량적측정제공료방법。
Objective To optimize the condition of measuring the aluminum by CAS spectrophotometry of national standard method.Methods To find out the best experimental conditions of the three-Component Chromogenic Reaction System of CAS-Al-CTAB.Results In the optimal experimental conditions,the linear range of aluminum was 0.1μg ~10.0μg/25mL, the regression equation Y=0.1756X-0.0149,r= 0.9996, the average recovery rate of the sample was 103.3%,RSD=1.46%(n=6).Conclution This method possesses high sensitivity, precision,stability, and the accuracy is high, it is hoped that this method could be a powerful basis for measuring trace aluminum count in food .