Ashok Kumar Jaiswal
@aiims.edu
Chemist, Department of forensic medicine and toxicology
All India Institute of medical Sciences
RESEARCH, TEACHING, or OTHER INTERESTS
Analytical Chemistry, Toxicology
Scopus Publications
Scopus Publications
Neha Afaria, Rohit Kanojia, A. K. Jaiswal, Sudhir K. Gupta, and T. Millo
Informatics Publishing Limited
Since the COVID-19 (coronavirus disease of 2019) pandemic, alcohol-based hand sanitizers are being used widely to prevent the transmission of corona virus. But a major concern is the adulteration of methanol in hand sanitizer. Cases of methanol poisoning increased drastically during the pandemic. This study was carried out to detect ethanol and methanol in hand sanitizers that are being sold and used in public places. The hand sanitizer samples for this study were collected from different public places in Delhi from June-August 2022. A total of 53 samples were collected and the samples were run on Gas Chromatography (GC-HS) for analysis of ethanol and methanol. Methanol was detected in 25 samples. During the COVID-19 pandemic, various cases of methanol poisoning due to consumption or chronic absorption of hand sanitizer have been reported all over the world. Methanol is a toxic alcohol and long-term dermal exposure to this toxic substance can cause severe health effects. During the pandemic, the increased demand of hand sanitizer resulted in uncontrolled manufacturing and sale of hand sanitizers. Data obtained from this study highlight the need to monitor the manufacturing and sale of alcoholbased hand sanitizer by the regulatory bodies and to raise awareness among the public about the toxic effects of methanol.
Rohit Kanojia, A. K. Jaiswal, Arkaja Goswami, and Sunita Bhagat
Informatics Publishing Limited
Viscera analysis plays a major and important role in forensics, Scientists use their own tried and tested methods to avoid excess time consumption and errors, to analyse the viscera samples for the presence of various illicit drugs, pesticides, heavy metals, or any other poisonous substances that may be the reason of death. In this article, the current scenario of viscera handling in forensic science laboratories in India is mentioned in detail with a step-by-step procedure. Tests for phosphine and various pesticides are performed in the stomach and small intestine. Drugs are extracted according to different procedures depending upon the affinity of the drug i.e., acidic, basic, or neutral. After that, Tests for drugs and other toxic substances are usually performed in blood, liver, spleen, and kidney. Blood usually comes in the third jar, and is tested for drugs, alcohol, and maybe for pesticides, phosphine and for any other suspected toxin. Viscera sample needs to be digested before the analysis of heavy metals. Any part of the viscera can be digested and tested for heavy metal. Usually, a mixture of all the viscera parts is digested and analysed. The techniques mentioned in this article are rigorously used in the chemistry and toxicology division in forensic laboratories in India.
Neha Afaria, A. K. Jaiswal, Venkatesh Janarthanan, Sudhir Kumar Gupta, T. Millo, and G. Gokul
Springer Science and Business Media LLC
Sneha Yadav, Lovlish Gupta, Monika Chauhan, Arvind Kumar Jain, and Ashok Kumar Jaiswal
Diva Enterprises Private Limited
Anita Yadav, Adarsh Kumar, Amita Srivastava, AK Jaiswal, and SK Gupta
Diva Enterprises Private Limited
Shyam Kishore, Sudhir Kumar Gupta, Sudheer Kumar Arava, Asit Ranjan Mridha, Ashok Kumar Jaiswal, Asit Kumar Sikary, Deepak Ramkumar Bharti, and Chittaranjan Behera
Elsevier BV
Md Shadab Raheel, Abhishek Yadav, Shashank Pooniya, Sudhir Kumar Gupta, and A.K. Jaiswal
Springer Science and Business Media LLC