photometric analysis
3.Practical Applications of Brilliant Green(BG) Coloring Reagents in Photometric Analysis of Metals and Nonmetals
4.The paper describes the azo-phosphor RE reagent for photometric analysis,focusing on the various developers and their developing reaction systems,corresponding the maximum length of the absorption wave,molar absorption factor,detection limit,interference and application by corresponding photometric analysis methods.
5.In the paper,probes into the practicability of studying photometric analysis by the aid of continuous light sources at atomic absorption spectrophotometer has been probed.The monochromatic absorption is unnecessary and sufficient condition for the Beer-Lambert Law.
6.The color reaction can be used in the determination of micro-rhodium with photometric analysis and the optinum condition for the determination is:pH; 4.5-6.5,color reagent concentration; 2.5×10~(-4)molL~(-1),T;
8.APPLICATIONS OF CROWN ETHERS IN CHEMICAL ANALYSIS——V. Synthesis of cis-Dipicryldibenzo?8—rown? and Application of This Crown Ether in Photometric Determination of Potassium
9.Abstract Determining As in FeSi alloy with melted analysis sample of KNO3-KOH by DDTc-Ag photometric method,the loss of As is reduced during the sample melting, colour sensitivity is higher, and analytical results are more accurate.

