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Коллеги, помогите, пжлта, ознакомиться со статьями:

1. Determination of poly(ethylene glycol)s by both normal-phase and reversed-phase modes of high-performance liquid chromatography
Cheng Sun, Margot Baird
Journal of Chromatography A
Volume 800, Issue 2, 27 March 1998, Pages 231-238

Код: Выделить всё

http://dx.doi.org/10.1016/S0021-9673(97)01150-3

2. Separation and determination of oligomers and homologues of aliphatic alcohol ethoxylates in textile lubricants and lubricant emulsion by high-performance liquid chromatography
Cheng Sun
Journal of Chromatography A
Volume 771, Issues 1-2, 30 May 1997, Pages 145-154

Код: Выделить всё

http://dx.doi.org/10.1016/S0021-9673(97)00139-8

Спасибо заранее!

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