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http://dx.doi.org/10.17137/korrae.2021.29.2.25

The Effect of Proficiency in Environmental Sample Measurement on Analysis Results  

Yoon, Seok-Pyo (Department of Biological and Environmental Engineering, Semyung University)
Kang, Seong Min (Department of Biological and Environmental Engineering, Semyung University)
Son, Yeonmi (Department of Biological and Environmental Engineering, Semyung University)
Jeon, Gang Weon (Department of Biological and Environmental Engineering, Semyung University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.29, no.2, 2021 , pp. 25-30 More about this Journal
Abstract
This study investigated how the indicators of quality control are improved by proficiency in the measurement of phosphate concentration. In addition, analysis equipments were to be compared to see if there were any differences in measurements depending on the type of analysis device. In order to find out the effect of the proficiency of the analyst on the analysis results, three analysts measured phosphate concentration seven times in accordance with the Korean water pollution test standards, and met the quality control indices if repeated more than five times. The limit of quantification for phosphate was calculated at 0.02 mg/L. If the analysis devices are different, the absorbance and concentration of the samples near the limit of quantification are statistically significant difference.
Keywords
Phosphate; Method detection limit; Limit of quantification; Quality control; Proficiency;
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