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Gas chromatographic determination of the molecular-weight distribution of polyethylene glycol products

✍ Scribed by C. Calzolari; L. Favretto; B. Stancher

Publisher
Elsevier Science
Year
1969
Tongue
English
Weight
318 KB
Volume
39
Category
Article
ISSN
1873-3778

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✦ Synopsis

Notes CHROM. 3847 NOTES COMPARISON I3lZT\Vl~~N THE VAPOUR-I'R1BSURl.Z OSMOMl%TRIC (VI%) VALUIZS OF 1v~ FOR THE STARTING POLYETHYLENE GLYCOLS AND THE GAS-LIQUID CHROMhTOGRAPHIC (GTK) d?~ ORTAINRD FOR THE CHLORO AND THE TRIIMETHYLSILYL DBRIVATIVES3 I T. NAICAGAVA, ET. TNOUE AND I<. I<unrYhuA, Awd. CJw~m., 33 (19Gr) I_j24. a T,. GILIJENBERG AND J. R. TROWURIDGE,

πŸ“œ SIMILAR VOLUMES

Determination of the molecular-weight di
Determination of the molecular-weight distribution of polyethylene glycols by thin-layer chromatography coupled with densitometry
✍ L. Favretto; G.Pertoldi Marletta; L.Favretto Gabrielli πŸ“‚ Article πŸ“… 1970 πŸ› Elsevier Science 🌐 English βš– 604 KB

Thin-layer chromatography with multiple one-dimensional elution was used to determine the molecular-weight distribution of polyethylene glycols of the general formula HO(CH2CHz0)nH after conversion into their dichloro derivatives. The adsorbent was silica gel, the developer was based on a mixture of