用高效液相色谱法测定液体农药制剂中的十二烷基苯磺酸盐和乙氧基化烷基酚
Determination of dodecylbenzenesulphonates and ethoxylated alkylphenols in liquid pesticide formulations by high-performance liquid chromatography.
作者信息
Schreuder R H, Martijn A
机构信息
Plant Protection Service, Wageningen, The Netherlands.
出版信息
J Chromatogr. 1988 Jan 1;435(1):73-82. doi: 10.1016/s0021-9673(01)82164-6.
A method is presented for determining mixtures of calcium dodecylbenzene-sulphonate (CaDBS) and ethoxylated alkylphenols in pesticidal emulsifiable concentrates. The pesticide formulations are adsorbed on a pre-concentration column. The active ingredients, the solvents and the emulsifiers are eluted successively by using solvents with increasing polarities. The various homologues of CaDBS and the ethoxylated alkylphenols are separated by reversed-phase high performance liquid chromatography using methanol-water containing tetramethylammonium bromide. The oligomers of the ethoxylated phenols are separated on an aminopropyl-modified column using a solvent gradient (propan-2-ol-water and hexane-tetrahydrofuran). Quantitative results are given for synthetic samples. The degree of ethoxylation of the ethoxylated alkylphenols has been determined and the CaDBS components characterized.
介绍了一种测定农药乳油中十二烷基苯磺酸钙（CaDBS）和乙氧基化烷基酚混合物的方法。农药制剂吸附在预浓缩柱上。通过使用极性递增的溶剂依次洗脱活性成分、溶剂和乳化剂。采用含溴化四甲基铵的甲醇-水，通过反相高效液相色谱法分离CaDBS和乙氧基化烷基酚的各种同系物。使用溶剂梯度（异丙醇-水和己烷-四氢呋喃）在氨丙基改性柱上分离乙氧基化酚的低聚物。给出了合成样品的定量结果。已测定乙氧基化烷基酚的乙氧基化程度，并对CaDBS成分进行了表征。
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