Lab regular and inter-lab quality control for analysis of trichloroethylene in solid waste
Chen Kun;Li Wenju;Jin Mei;Gong Wei;Zhou Qianlan;Guizhou Provincial Environmental Monitoring Centre;
This paper discusses lab regular and inter-lab quality control for analysis of trichloroethylene in solid waste. Sample was pretreated by soaking and oscillation strictly according to HJ760-2015,and was then detected with gas chromatography-mass spectrometry. Standard deviation of inter-laboratory test of standard liquid is 0. 073. The difference between two standards is 3. 35%.The upper control limit of determination precision is 6. 26mg/L,and the lower control limit is5. 59mg/L. The upper control limit of accuracy is 6. 64mg/L,and the lower control limit is 5. 26mg/L.The determination results are located between upper and lower control limit in the quality control chart. Through quality control of analysis Lab regular and inter-laboratory test,sample determination precision,accuracy and the error of standard solution for all can be controlled in the permitted range.
【CateGory Index】： X833