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Titolo:
REPORT ON COOPERATIVE DETERMINATION OF MO LECULAR-WEIGHT AVERAGES OF POLYMERS BY SIZE-EXCLUSION CHROMATOGRAPHY .2. A REPORT ON THE 2ND ROUND-ROBIN TEST (NO 1)
Autore:
MORI S; TAKAYAMA S; GOTO Y; NAGATA K; KINUGAWA A; HOUSAKI T; YABE M; TAKADA K; SUGIMOTO T; SHIMIZU M; NAGASHIMA I; HASEGAWA A; SENBA T; OOSHIMA N; MAEKAWA T; SUGITANI H; OOZEKI H; NAKAHASHI K; HIBI K; OOTANI H; NAKAMURA S; SUGIURA K; TANAKA T; OGIWARA S; KATSUNO Y; OOKUBO T;
Indirizzi:
JAPAN SOC ANALYT CHEM,RES COMM POLYMER ANAL,SECT SPECIAL STUDY SEC,SHINAGAWA KU TOKYO 141 JAPAN
Titolo Testata:
Bunseki Kagaku
fascicolo: 1, volume: 45, anno: 1996,
pagine: 95 - 101
SICI:
0525-1931(1996)45:1<95:ROCDOM>2.0.ZU;2-7
Fonte:
ISI
Lingua:
JPN
Keywords:
SIZE EXCLUSION CHROMATOGRAPHY; MOLECULAR WEIGHT AVERAGES; ROUND ROBIN TEST; POLYSTYRENE; POLY(METHYL METHACRYLATE);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
S. Mori et al., "REPORT ON COOPERATIVE DETERMINATION OF MO LECULAR-WEIGHT AVERAGES OF POLYMERS BY SIZE-EXCLUSION CHROMATOGRAPHY .2. A REPORT ON THE 2ND ROUND-ROBIN TEST (NO 1)", Bunseki Kagaku, 45(1), 1996, pp. 95-101

Abstract

Molecular weight averages of four polystyrenes (PS) and two poly(methylmethacrylates) (PMMA) were determined by size exclusion chromatography at 26 laboratories belonging to the section of special study on SEC. Polymer standards for constructing a calibration curve were delivered to the laboratories. Sample concentrations, the injection volume andthe procedure for drawing the baseline were prescribed. Other experimental conditions were the same as in the previous report. Relative standard deviations (RSD) of over-all mean molecular weight averages wereas follows after rejecting the suspected result in each set of data: 13.7 similar to 15.8% for PS number-average; 5.0 similar to 5.8% for PS weight-average; 11.9 similar to 13.3% for PMMA number-average; and 10.9 similar to 11.3% for PMMA weight-average. Compared with the results for the former round robin test, RSD was not improved much because the procedure for drawing the baseline was not restricted strictly.

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Documento generato il 28/09/20 alle ore 12:13:28