Inherent ultraviolet absorption spectrum and fluorescence spectrum of protein can be used in protein analysis, but the sensitivity of these methods can not meet the demand of microdetermination.
蛋白质内源紫外吸收光谱和荧光光谱可以用于蛋白质分析，但其灵敏度不能满足微量分析的要求。
2
A gas chromatographic method for the determination of methamidophos pesticide residues in the Allium Chinense was established by means of micro chemistry and solid phase extraction techniques.
A review is presented on the determination of micro amounts of iodine in iodinated sauce with iodometry, absorption spectrophotometry, chemiluminescence analysis, ion selective electrode analysis.