+++Помогите найти 2 статьи, Science Direct

[org_chemist]

1)Journal of Chromatography
Volume 546, 1991, Pages 297-309
Determintion of saccharides in biological materials by high-performance anion-exchange chromtography with pulsed amperometric detection
D. A. Martens and W. T. Frankenberger, Jr.

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http://dx.doi.org/10.1016/S0021-9673(01)93027-4

2) Analytical Biochemistry
Volume 181, Issue 2, September 1989, Pages 288-296
Analysis of glycosaminoglycan-derived oligosaccharides using reversed-phase ion-pairing and ion-exchange chromatography with suppressed conductivity detection
R. J. Linhardt, K. N. Gu, D. Loganathan and S. R. Carter

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http://dx.doi.org/10.1016/0003-2697(89)90245-5

[Demcha]

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[org_chemist]

И снова, спасибо, Demcha!