Supplement Association of Official Analytical Chemists ... Use standards of test compounds with purity s96% to prepare stock solutions at 1 mg/mL in MTBE. ... 1 u.g pentachloronitroben- zene/mL of sample extract. ... ACS grade. D. Preparation of Sample Bottles Add 1 mL preservative, C(j), to glass sample bottle. If residual chlorine is expected to be present in samples, add 80 mg Na2S203, C( k), anbsp;...
|Title||:||Official Methods of Analysis|
|Author||:||Association of Official Analytical Chemists|