Gas-liquid chromatographic determination of terbuthylazine technical and its formulations: collaborative study
Meier, J.; Nowak, K.; Suter, R.; Tomann, A.; Bosshardt, H.P.
Journal - Association of Official Analytical Chemists 64(4): 825-828
ISSN/ISBN: 0004-5756 Accession: 000894416
Terbuthylazine technical and its 80% w.p. were analyzed in a CIPAC collaborative study. The content and the identity were determined by GLC on a column of 3% Carbowax K20M on Gas-Chrom Q, using di-n-pentylphthalate as the internal standard. Results obtained from 27 government, university and industrial collaborators showed within-laboratory repeatability of 1.3% for the technical and 1.0% for the w.p. Reproducibility was 2.1% for both samples. The method has been adopted official first action. From summary.