Regardless of the method of analysis, system suitability criteria should be described. Blank and standard solution spectra or chromatograms should be included.
Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis, in formerly practiced was a blank, therefore inthe production process knew and took the degree to be insufficient.
对于极薄煤层煤与瓦斯的突出可能性分析，在以往实践中是个空白，所以在生产过程中认识和重视程度不够。
3
Verified by responsibility analysis, blank experiment test and recovery percentage of standard samples, the accuracy and linearity of the two methods were evaluated.