scholarly journals Determination of total phosphorus in soil and sludge by an effective headspace gas chromatographic method

RSC Advances ◽  
2019 ◽  
Vol 9 (70) ◽  
pp. 40961-40965
Author(s):  
Yukai Zheng ◽  
Weide Fu ◽  
Rencheng Zhu ◽  
Zhanbo Hu ◽  
Gang Chen ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Total Phosphorus ◽  
Chromatographic Method ◽  
Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Novel Method ◽  
Gas Chromatographic Method

This paper reported a novel method for the determination of total phosphorus (TP) content in soil and sludge by a headspace gas chromatography (HS-GC) method.

Determination of Ethylene Oxide in Ethoxylated Surfactants and Demulsifiers by Headspace Gas Chromatography

1987 ◽  
Vol 70 (5) ◽  
pp. 796-798 ◽  
Author(s):  
James R Dahlgran ◽  
Carroll R Shingleton
Keyword(s):  
Gas Chromatography ◽  
Ethylene Oxide ◽  
Chromatographic Method ◽  
Headspace Gas Chromatography ◽  
Quantitation Limit ◽  
Relative Standard ◽  
Headspace Gas ◽  
Ethoxylated Surfactants ◽  
Gas Chromatographic Method

Abstract A headspace gas chromatographic method for the determination of traces of ethylene oxide in ethoxylated surfactants and demulsifiers was developed. Samples are analyzed directly by the technique to a 1.0 ppm (w/w) quantitation limit. The procedure also performs well for propylene oxide, acetaldehyde, and 1,4-dioxane. It is simple, sensitive, and linear. The percent relative standard deviations for 0.5 and 30 ppm ethylene oxide in the surfactant were 2.8 and 8.3%, respectively.

A Novel Method for Determination of Ethoxyl Content in Ethyl Cellulose by Headspace Gas Chromatography

2012 ◽  
Vol 45 (9) ◽  
pp. 1028-1035 ◽  
Author(s):  
Hailong Li ◽  
Xin-Sheng Chai ◽  
Huaiyu Zhan ◽  
Mengru Liu ◽  
Shiyu Fu
Keyword(s):  
Gas Chromatography ◽  
Ethyl Cellulose ◽  
Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Novel Method

Determination of Residual Ethylene Oxide in Spectinomycin Hydrochloride Bulk Drug by Dynamic Headspace Gas Chromatography

1993 ◽  
Vol 76 (2) ◽  
pp. 313-319
Author(s):  
Tore Ramstad ◽  
Lisa S Miller ◽  
Virginia N Thomas
Keyword(s):  
Detection Limit ◽  
Ethylene Oxide ◽  
Chromatographic Method ◽  
Headspace Gas Chromatography ◽  
Dynamic Headspace ◽  
Relative Standard ◽  
Headspace Gas ◽  
Bulk Drug ◽  
Gas Chromatographic Method

Abstract A dynamic headspace gas chromatographic method was developed for the determination of residual ethylene oxide (EtO) in a pharmaceutical bulk drug, spectinomycin hydrochloride. The recommended column is PoraPLOT Q; PoraPLOT U was demonstrated to be equivalent. A detection limit of 2 ppb was achieved, and linearity was established to the highest value tested (5 ppm). The detection limit was 2-3 orders of magnitude lower than that achieved in previously published methods for EtO in pharmaceutical bulk drugs. Precision studies yielded relative standard deviations ranging from 2 to 10% over the 10-575 ppb concentration range. The method was applied to support EtO sterilization studies conducted at The Upjohn Company and was implemented for routine use. The sterilization studies demonstrated that residual levels of EtO <10 ppb are achievable.

Novel Method for the Determination of the Methoxyl Content in Lignin by Headspace Gas Chromatography

2012 ◽  
Vol 60 (21) ◽  
pp. 5307-5310 ◽  
Author(s):  
Hailong Li ◽  
Xin-Sheng Chai ◽  
Mengru Liu ◽  
Yonghong Deng
Keyword(s):  
Gas Chromatography ◽  
Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Novel Method
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