Response factors of organochlorine compounds in the electrolytic conductivity detector

Research output: Contribution to journalArticle

Standard

Response factors of organochlorine compounds in the electrolytic conductivity detector. / Mu, HL; Wesén, Clas; Odenbrand, Ingemar; Wahlund, Karl-Gustav.

In: Journal of Chromatography A, Vol. 849, No. 1, 1999, p. 285-292.

Research output: Contribution to journalArticle

Harvard

APA

CBE

MLA

Vancouver

Author

RIS

TY - JOUR

T1 - Response factors of organochlorine compounds in the electrolytic conductivity detector

AU - Mu, HL

AU - Wesén, Clas

AU - Odenbrand, Ingemar

AU - Wahlund, Karl-Gustav

PY - 1999

Y1 - 1999

N2 - In our previous studies we have used electrolytic conductivity detection (ELCD) in the selective analysis of chlorinated fatty acids in marine samples. In order to determine the chlorinated fatty acids quantitatively, we studied the ELCD response factors (RFs) of chlorinated fatty acids and compared them with those of other chlorinated compounds. We also studied the effect of reactor temperature and total gas flow-rate on the RFs. The ELCD RFs of different organochlorine compounds varied significantly at a reactor temperature of 600 degrees C. The variation was reduced at reactor temperatures higher than 850 degrees C. At low reactor temperatures, the RFs of methyl esters of chlorinated fatty acid were much higher than those of the other compounds. Although the gas flow in the reactor was laminar, diffusion was still rapid enough not to cause the varied RFs. Nitrogen-containing chlorinated compounds had lower RFs than compounds without nitrogen, owing to a neutralization of hydrogen chloride by ammonia. (C) 1999 Elsevier Science B.V. All rights reserved.

AB - In our previous studies we have used electrolytic conductivity detection (ELCD) in the selective analysis of chlorinated fatty acids in marine samples. In order to determine the chlorinated fatty acids quantitatively, we studied the ELCD response factors (RFs) of chlorinated fatty acids and compared them with those of other chlorinated compounds. We also studied the effect of reactor temperature and total gas flow-rate on the RFs. The ELCD RFs of different organochlorine compounds varied significantly at a reactor temperature of 600 degrees C. The variation was reduced at reactor temperatures higher than 850 degrees C. At low reactor temperatures, the RFs of methyl esters of chlorinated fatty acid were much higher than those of the other compounds. Although the gas flow in the reactor was laminar, diffusion was still rapid enough not to cause the varied RFs. Nitrogen-containing chlorinated compounds had lower RFs than compounds without nitrogen, owing to a neutralization of hydrogen chloride by ammonia. (C) 1999 Elsevier Science B.V. All rights reserved.

KW - electrolytic conductivity detection

KW - detection

KW - GC

KW - organochlorine

KW - compounds

KW - fatty acids

U2 - 10.1016/S0021-9673(99)00536-1

DO - 10.1016/S0021-9673(99)00536-1

M3 - Article

VL - 849

SP - 285

EP - 292

JO - Journal of chromatography. A

JF - Journal of chromatography. A

SN - 0021-9673

IS - 1

ER -