| abstract |
The invention discloses a method for determining the value of a standard substance of monomethylarsenic solution and a method for traceability of its value, and relates to the technical field of inspection and calibration. The area normalization method of the factor determines the proportion of monomethyl arsenic to obtain the percentage of monomethyl arsenic content, thereby obtaining the concentration value of the standard substance of monomethyl arsenic solution; then evaluate the uncertainty of the concentration of monomethyl arsenic solution and synthesize relative The uncertainty can realize the determination of the standard substance of monomethyl arsenic solution; the determination method of the standard substance of monomethyl arsenic solution of the present invention, since the total arsenic content is measured by two methods of ICP and ICP-MS, its quantitative value is It can be traced to the national primary reference material—arsenic single-element solution reference material, with accurate data, convenient, accurate and traceable properties. |