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Fabrication of SO/sub 2/preparation system and calibration of PINSTECH sulfur standard for /sup 34/S/sup 32/S mass spectrometric analysis

Abstract

This report describes the fabrication and standardization of operation procedures of a SO/sub 2/ preparation system used for the extraction of sulfur dioxide gas from sulfur minerals (aqueous sulfate, elemental sulfur, and sulfides) for sulfur isotope ratio measurements on a gas source mass spectrometer for hydrological, geological and environmental applications. SO/sub 2/ preparation procedure as described by Fumitaka Yanagisawa and Hitoshi Sakai (1983) is adopted with some modifications. A chemically pure BaSO/sub 4/ powder is chosen as PINSTECH Sulfur Standard PSS-I for routine laboratory /sup 34/S analysis. PSS-1 is calibrated against the International Atomic Energy Agency (IAEA) standard Cannon Diablo Troilite (CDT) using the NBS-127 sulfur standard Sigma /sup 34/S values of PSS-1 as analyzed at PINSTECH and Institute fur Hydorlogie, Munich are found to be 14.58 +-0.07 % CDT (n=6) and 14.59+-0.15% CDT (n=2) respectively. NBS-127 is BaSO/sub 4/ powder from the National Bureau of Standards, USA and has been calibrated against CDT. Interlaboratory comparison of various standards is also documented. Using this system, the reproducibility of sulfur isotope ratio measurements is better than +-0.2 % (n=10). (author).
Publication Date:
May 01, 1994
Product Type:
Technical Report
Report Number:
PINSTECH-137
Reference Number:
SCA: 400102; PA: AIX-28:011796; EDB-97:027711; NTS-97:006707; SN: 97001729771
Resource Relation:
Other Information: PBD: May 1994
Subject:
40 CHEMISTRY; MASS SPECTROSCOPY; SULFUR 32; SULFUR 34; FABRICATION; CALIBRATION STANDARDS; QUANTITATIVE CHEMICAL ANALYSIS; REACTOR SITES; SULFUR DIOXIDE
OSTI ID:
424783
Research Organizations:
Pakistan Inst. of Nuclear Science and Technology, Islamabad (Pakistan). Radiation and Isotope Application Div.
Country of Origin:
Pakistan
Language:
English
Other Identifying Numbers:
Other: ON: DE97611822; TRN: PK9600210011796
Availability:
INIS; OSTI as DE97611822
Submitting Site:
INIS
Size:
16 p.
Announcement Date:

Citation Formats

Sajjad, M I, Latif, Z, Ali, M, Qureshi, R M, Tasneem, M A, Khan, I H, Ahmed, M, and Ahmed, I. Fabrication of SO/sub 2/preparation system and calibration of PINSTECH sulfur standard for /sup 34/S/sup 32/S mass spectrometric analysis. Pakistan: N. p., 1994. Web.
Sajjad, M I, Latif, Z, Ali, M, Qureshi, R M, Tasneem, M A, Khan, I H, Ahmed, M, & Ahmed, I. Fabrication of SO/sub 2/preparation system and calibration of PINSTECH sulfur standard for /sup 34/S/sup 32/S mass spectrometric analysis. Pakistan.
Sajjad, M I, Latif, Z, Ali, M, Qureshi, R M, Tasneem, M A, Khan, I H, Ahmed, M, and Ahmed, I. 1994. "Fabrication of SO/sub 2/preparation system and calibration of PINSTECH sulfur standard for /sup 34/S/sup 32/S mass spectrometric analysis." Pakistan.
@misc{etde_424783,
title = {Fabrication of SO/sub 2/preparation system and calibration of PINSTECH sulfur standard for /sup 34/S/sup 32/S mass spectrometric analysis}
author = {Sajjad, M I, Latif, Z, Ali, M, Qureshi, R M, Tasneem, M A, Khan, I H, Ahmed, M, and Ahmed, I}
abstractNote = {This report describes the fabrication and standardization of operation procedures of a SO/sub 2/ preparation system used for the extraction of sulfur dioxide gas from sulfur minerals (aqueous sulfate, elemental sulfur, and sulfides) for sulfur isotope ratio measurements on a gas source mass spectrometer for hydrological, geological and environmental applications. SO/sub 2/ preparation procedure as described by Fumitaka Yanagisawa and Hitoshi Sakai (1983) is adopted with some modifications. A chemically pure BaSO/sub 4/ powder is chosen as PINSTECH Sulfur Standard PSS-I for routine laboratory /sup 34/S analysis. PSS-1 is calibrated against the International Atomic Energy Agency (IAEA) standard Cannon Diablo Troilite (CDT) using the NBS-127 sulfur standard Sigma /sup 34/S values of PSS-1 as analyzed at PINSTECH and Institute fur Hydorlogie, Munich are found to be 14.58 +-0.07 % CDT (n=6) and 14.59+-0.15% CDT (n=2) respectively. NBS-127 is BaSO/sub 4/ powder from the National Bureau of Standards, USA and has been calibrated against CDT. Interlaboratory comparison of various standards is also documented. Using this system, the reproducibility of sulfur isotope ratio measurements is better than +-0.2 % (n=10). (author).}
place = {Pakistan}
year = {1994}
month = {May}
}