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Issue 4, 2001

Determination of diphenylamine stabilizer and its nitrated derivatives in smokeless gunpowder using a tandem MS method

Author affiliations

Abstract

A novel method for determination of diphenylamine (DPA) and its nitrated derivatives, which are considered as characteristic components in smokeless powder and gunshot residues, is described. A tandem mass spectrometric method is established and mass spectrometer parameters optimized for each compound to obtain higher sensitivity. Under optimum conditions, quantitative analysis was carried out. The linear ranges are 5.0–200.0, 2.0–200.0 and 5.0–250.0 ng ml−1 and the detection limits are 1.0, 0.5 and 2.5 ng ml−1 for diphenylamine (DPA), N-NO-diphenylamine (N-NO-DPA) and 4-NO2-diphenylamine (4-NO2-DPA), respectively. Intra-assay and inter-assay precision and accuracy of analysis of these three samples were investigated. Based on the regression lines obtained above, smokeless samples were analyzed. It was found that there are 0.952% DPA, 0.384% N-NO-DPA and 0.128% 4-NO2-DPA in smokeless powder. Recovery tests showed that using cotton swabs, 80.3 ± 4.9% DPA, 79.6 ± 3.1% N-NO-DPA and 83.1 ± 5.4% 4-NO2-DPA could be recovered from human hands.

Article information


Submitted
20 Dec 2000
Accepted
16 Jan 2001
First published
02 Mar 2001

Analyst, 2001,126, 480-484
Article type
Paper

Determination of diphenylamine stabilizer and its nitrated derivatives in smokeless gunpowder using a tandem MS method

Y. Tong, Z. Wu, C. Yang, J. Yu, X. Zhang, S. Yang, X. Deng, Y. Xu and Y. Wen, Analyst, 2001, 126, 480 DOI: 10.1039/B010183O

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