T3WS便携式水质快速检测仪在环境监测中的应用研究

Application of T3WS Portable Water Quality Fast Detector in Environmental Monitoring

便携式水质快速检测仪具有测量速度快、体积小、重量轻、便于携带等特点,特别适用于水质现场快速测定。在T3WS快速检测仪30余个项目中选择六价铬、甲醛、砷、氨氮、硫化物等五项常用指标,进行试管一致性、校准曲线斜率、截距、相关系数、检出限、测定范围、精密度、准确度以及与实验室分析方法比对等试验。结果表明,T3WS快速检测仪测试标准样品测试结果均在允许误差范围内,标准样品及地表水、废水样品测试结果的相对偏差均小于10%,与实验室分析结果之间最大相对误差分别为-6.1%、15.9%、15%、-7.2%、-21.0%,T3WS便携式水质快速检测仪用于水质现场快速测定结果的精密度与准确度是可以接受的。

Portable Rapid Water Quality Detection Instrument has the advantages of fast detection,small volume,light weight,portability and others,especially when it's used for rapid determination. Five out of 30 detecting items of T3 WS was selected including hexavalent chromium,formaldehyde,arsenic,ammonia nitrogen,sulfur to test consistency,calibration curve slope,intercept,correlation coefficient,detection limit and low limit of determination scope,precision,accuracy and with laboratory analysis method than the equivalence test. The results show that the T3 WS rapid detection tester standard test sample results are within the allowable error range,the relative deviation of the standard samples and surface water and wastewater samples test results was less than 10%,and laboratory analysis results between the maximum relative error were 6. 1% and 15. 9%,15%,-7. 2%,- 21. 0%,T3 WS portable water quality quick detection instrument for water quality for the rapid determination of the precision and accuracy is acceptable.