Research on rapid detection method for formaldehyde content in coal seam water
The method of using acetylacetone spectrophotometry to determine formaldehyde in coal seam water was studied,and the detection limit,precision and degree of accuracy were validated.The results showed that the detection limit of formaldehyde was 0.012 98 mg/L.And three concentrations of formaldehyde standard solution samples were tested with relative standard deviations of 1.54%,0.377 3%and 0.168 7%respectively.The recovery rate of sample spiking was between 101.01%and 103.33%.All the above indicators met the requirements of HJ 601-2011,indicating that the use of spectrophotometry could quickly and accurately determine the content of formaldehyde in coal seam water.
coal seam waterformaldehydespectrophotometerdetection limitprecisiondegree of accuracy
NETL
NSTL
万方数据
维普
