Determination of Zinc and Phosphorus from Zinc Phosphide in Gastric Contentsby Inductively Coupled Plasma Optical Emission Spectrometer

Main Article Content

Laddawan Banhan
Theerin Sinchai
Malinee Pongsavee

Abstract

             The ability to determine the concentration of Zn and P in Zinc Phosphide (Zn3P2) in gastric contents is therefore an important goal in forensic analysis to support the cause of death. In this research, a quantitative technique was developed to determine of Zn and P and investigated the ratio of Zn and P from zinc phosphide in artificial gastric contents, foods that contained high concentration of Zn and P and 75 gastric content samples. The application of Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES) was useful for the determination of Zn and P in the post-mortem material enabled ascertainment of the cause of poisoning.


              According to the result of method validation, the linear and ranges of Zn and P were 0.5-30 µg/ml and 12.5-500 µg/ml, respectively. The relative of determination (R2) of Zn and P standard solutions were 0.9995 and 0.9998, respectively. The limits of detection (LOD) were found to be 0.05 µg/ml and 2.5 µg/ml, while the limits of quantitation (LOQ) were found to be 0.5 µg/ml and 15 µg/ml for Zn and P, respectively. Mean percentage recoveries were in the range of 80–110. Precision of Zn and P analyzed by reproducibility precision (%RSD) were 0.88 and 1.96 respectively. The ratio of Zn and P concentration in zinc phosphide was 3:1 in artificial gastric contents compared to conventional foods containing both elements. The types of food affected the ratio of Zn and P from zinc phosphide in gastric contents.

Article Details

How to Cite
Banhan, L., Sinchai, T., & Pongsavee, M. (2020). Determination of Zinc and Phosphorus from Zinc Phosphide in Gastric Contentsby Inductively Coupled Plasma Optical Emission Spectrometer. Journal of Criminology and Forensic Science, 6(1), 59–76. retrieved from https://so02.tci-thaijo.org/index.php/forensic/article/view/240533
Section
Research Articles

References

Anger, F. et al. (2000). Fatal Aluminum Phosphide Poisoning, Journal of Analytical Toxicology, 24, 9–92.

AOAC. (2012). Official Methods of Analysis. 19th Edition. Washington: Association of Official Analytical Chemists.

Amornsit, M., and Petsom, A. (1996). Principles and Techniques of Instrumental Analysis. Bangkok Chuan Pim. (In Thai)

Braithwaite R. A., (2004). Metals and Anions. Clarke’s Analysis of Drugs and Poisons. London: Pharmaceutical Press.

Bumbrah, G. S., Krishan, K., Kanchan, T., Sharma, M., and Sodhi, G. S. (2012). Phosphide Poisoning: A Review of Literature. Forensic Science International, 214(1-3), 1-6.

Chan L. T. F, Crowley R. J, Delliou D, Geyer R. (1983). Phosphine Analysis in Post Mortem Specimens Following Ingestion of Aluminium Phosphide. Journal of Analytical Toxicology, 7, 165–167.

Lauterbach, M., et al. (2005). Epidemiology of Hydrogen Phosphide Exposures in Humans Reported to the Poison Center in Maintz, Germany, 1983–2003. Clinical Toxicology, 43(6), 575–581.

Marashi, S. M. (2015). A Debate Against the Current Proposed Mechanism of Phosphine Liberation in Zinc Phosphide Poisoning. Eur Rev Med Pharmacol Sci, 19(22), 4210-4211.

Musshoff, F., Preuss, J., Lignitz, E., and Madea, B. (2008). A Gas Chromatographic Analysis of Phosphine in Biological Material in A Case of Suicide. Forensic Science International, 177, e35–e37.

Proudfoot AT. (2009). Aluminium and Zinc Phosphide Poisoning. Journal of Clinical Toxicology, 47(2), 89–100.

Sadlik, J. (2011). A Case of Intoxication with Zinc Phosphide. Problems of Forensic Sciences, 88. 345–353.

SWGTOX. (2013). Scientific Working Group for Forensic Toxicology (SWGTOX): Standard Practices for Method Validation in Forensic Toxicology. Journal of Analytical Toxicology, 37(7), 452-474.

Trakulsrichai, S., Kosanyawat, N., Atiksawedparit, P., Sriapha, C., Tongpoo, A., Udomsubpayakul, U., Rittilert, P., and Wananukul. W., (2017). Clinical Characteristics of Zinc Phosphide Poisoning in Thailand. Therapeutics and Clinical Risk Management, 14(13), 335–340.

Teeyapant, P. & Chavalittumrong, P. (2013). Guidelines Analytical Toxicology. Department of Medical Sciences, Ministry of Public Health, 1(1), 21-23.

Yogendranathan, N. (2017). A Case Report of Zinc Phosphide Poisoning: Complicated by Acute Renal Failure and Tubulo Interstitial Nephritis. BMC Pharmacology and Toxicology, 18(37).