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Teoh WK, Mohamed Sadiq NS, Saisahas K, Phonchai A, Kunalan V, Md Muslim NZ, Limbut W, Abdullah AFL, Chang KH. Detection and discrimination of sedative-hypnotics in spiked beverage dry residues using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy combined with chemometrics. J Forensic Sci 2023; 68:75-85. [PMID: 36273275 DOI: 10.1111/1556-4029.15156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 09/26/2022] [Accepted: 10/11/2022] [Indexed: 12/31/2022]
Abstract
Drugs-facilitated crimes (DFCs) involve the incapacitation of victims under the influence of drugs. Conventionally, a drug administration act is often determined through the examination of biological samples; however, dry residues from any surface, such as drinking glass if related to a DFC could be a potential source of evidence. This study was aimed to establish an attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy coupled with chemometrics for the determination of spiked sedative-hypnotics from dry residues of a drug-spiked beverage. In this study, four sedative-hypnotics, namely diazepam, ketamine, nimetazepam, and xylazine were examined using ATR-FTIR spectroscopy. Subsequently, the ATR-FTIR profiles were compared and decomposed by principal component analysis (PCA) followed by linear discriminant analysis (LDA) for their detection and discrimination. Visual comparison of ATR-FTIR profiles revealed distinct spectra among the tested drugs. An initial unsupervised exploratory PCA model indicated the separation of four main sedative-hypnotics clusters, and the proposed PCA score-LDA model had allowed for a 100% accurate classification. Discrimination of sedative-hypnotics from a dry beverage previously spiked with these drugs was also possible upon an additional extraction procedure. In conclusion, ATR-FTIR coupled with PCA score-LDA model was useful in detecting and discriminating sedative-hypnotics, including those that had been previously spiked into a beverage.
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Affiliation(s)
- Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Kasrin Saisahas
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Apichai Phonchai
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Vanitha Kunalan
- Department of Chemistry Malaysia (Headquarter), Petaling Jaya, Malaysia
| | - Noor Zuhartini Md Muslim
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Warakorn Limbut
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand.,Center of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Thailand.,Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Thailand
| | - Ahmad Fahmi Lim Abdullah
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Kah Haw Chang
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Teoh WK, Mohamed Sadiq NS, Saisahas K, Phoncai A, Kunalan V, Md Muslim NZ, Limbut W, Chang KH, Abdullah AFL. Vortex-assisted dispersive liquid-liquid microextraction-gas chromatography (VADLLME-GC) determination of residual ketamine, nimetazepam, and xylazine from drug-spiked beverages appearing in liquid, droplet, and dry forms. J Forensic Sci 2022; 67:1836-1845. [PMID: 35616477 DOI: 10.1111/1556-4029.15068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/10/2022] [Accepted: 05/13/2022] [Indexed: 11/29/2022]
Abstract
Presently, investigations of drug-facilitated crimes (DFCs) rely on the detection of substances extracted from biological samples following intake by the victim. However, such detection requires rapid sampling and analysis prior to metabolism and elimination of the drugs from the body. In cases of suspected DFCs, drug-spiked beverage samples, whether in liquid, droplet, or even dried form, can be tested for the presence of spike drugs and used as evidence for the occurrence of DFCs. This study aimed to quantitatively determine three sedative-hypnotics (ketamine, nimetazepam, and xylazine) from drug-spiked beverages using a vortex-assisted dispersive liquid-liquid microextraction-gas chromatography (VADLLME-GC) approach. In this study, a GC method was first developed and validated, followed by the optimization of the VADLLME protocol, which was then applied to quantify the target substances in simulated forensic case scenarios. The developed GC method was selective, sensitive (limit of detection: 0.08 μg/ml [ketamine]; 0.16 μg/ml [nimetazepam]; 0.08 μg/ml [xylazine]), linear (R2 > 0.99), precise (%RSD <7.2%), and accurate (% recovery: 92.8%-103.5%). Higher recoveries were achieved for the three drugs from beverage samples in liquid form (51%-97%) as compared to droplet (48%-96%) and dried (44%-93%) residues. The recovery was not hindered by very low volumes of spiked beverage and dried residues. In conclusion, the developed VADLLME-GC method successfully recovered ketamine, nimetazepam, and xylazine from spiked beverages that are likely to be encountered during forensic investigation of DFCs.
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Affiliation(s)
- Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Kasrin Saisahas
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Apichai Phoncai
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Vanitha Kunalan
- Narcotics Division, Forensic Science Analysis Centre, Department of Chemistry, Petaling Jaya, Malaysia
| | - Noor Zuhartini Md Muslim
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Warakorn Limbut
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Center of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla, Thailand.,Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Kah Haw Chang
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Ahmad Fahmi Lim Abdullah
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Saisahas K, Soleh A, Promsuwan K, Saichanapan J, Phonchai A, Sadiq NS, Teoh WK, Chang KH, Abdullah AFL, Limbut W. Nanocoral-like Polyaniline-Modified Graphene-Based Electrochemical Paper-Based Analytical Device for a Portable Electrochemical Sensor for Xylazine Detection. ACS Omega 2022; 7:13913-13924. [PMID: 35559175 PMCID: PMC9088932 DOI: 10.1021/acsomega.2c00295] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Accepted: 03/29/2022] [Indexed: 06/15/2023]
Abstract
A portable electrochemical device for xylazine detection is presented for the first time. An electrochemical paper-based analytical device (ePAD) was integrated with a smartphone. The fabrication of the ePAD involved wax printing, low-tack transfer tape, and cutting and screen-printing techniques. Graphene ink was coated on the substrate and modified with nanocoral-like polyaniline, providing an electron transfer medium with a larger effective surface area that promoted charge transfer. The conductive ink on the ePAD presented a thickness of 25.0 ± 0.9 μm for an effective surface area of 0.374 cm2. This sensor was then tested directly on xylazine using differential pulse voltammetry. Two linear responses were obtained: from 0.2 to 5 μg mL-1 and from 5 to 100 μg mL-1. The detection limit was 0.06 μg mL-1. Reproducibility was tested on 10 preparations. The relative standard deviation was less than 5%. The applicability of the sensor was evaluated with beverage samples spiked with trace xylazine. Recoveries ranged from 84 ± 4 to 105 ± 2%. The developed sensor demonstrated excellent accuracy in the detection of trace xylazine. It would be possible to develop the portable system to detect various illicit drugs to aid forensic investigations.
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Affiliation(s)
- Kasrin Saisahas
- Forensic
Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang
Kerian, Kelantan 16150, Malaysia
| | - Asamee Soleh
- Center
of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Center
of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Division
of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Kiattisak Promsuwan
- Center
of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Division
of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Forensic
Science Innovation and Service Center, Prince
of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Jenjira Saichanapan
- Division
of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Forensic
Science Innovation and Service Center, Prince
of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Apichai Phonchai
- Division
of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Forensic
Science Innovation and Service Center, Prince
of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | | | - Way Koon Teoh
- Forensic
Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang
Kerian, Kelantan 16150, Malaysia
| | - Kah Haw Chang
- Forensic
Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang
Kerian, Kelantan 16150, Malaysia
| | - Ahmad Fahmi Lim Abdullah
- Forensic
Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang
Kerian, Kelantan 16150, Malaysia
| | - Warakorn Limbut
- Center
of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Center
of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Division
of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
- Forensic
Science Innovation and Service Center, Prince
of Songkla University, Hat Yai, Songkhla 90110, Thailand
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Teoh WK, Mohamed Sadiq NS, Saisahas K, Phoncai A, Kunalan V, Md Muslim NZ, Limbut W, Abdullah AFL, Chang KH. Simultaneous detection of residual diazepam, ketamine, nimetazepam, and xylazine by high-performance liquid chromatography: application in drug-spiked beverages for forensic investigation. AUST J FORENSIC SCI 2022. [DOI: 10.1080/00450618.2022.2067231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | | | - Kasrin Saisahas
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Apichai Phoncai
- Division of Health And Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Vanitha Kunalan
- Department of Chemistry, Narcotics Division, Forensic Science Analysis Centre, Jalan Sultan, Petaling Jaya, Malaysia
| | - Noor Zuhartini Md Muslim
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Warakorn Limbut
- Division of Health And Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
- Center of Excellence for Trace Analysis and Biosensors (Tab-coe), Prince of Songkla University, Hat Yai, Songkhla, Thailand
- Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, Thailand
| | - Ahmad Fahmi Lim Abdullah
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Kah Haw Chang
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
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Mail R, Teoh WK, Kunalan V, Chang KH, Abdullah AFL. Quick discrimination of seized Erimin-5 tablets by attenuated total reflectance-Fourier transform infra-red spectroscopy. AUST J FORENSIC SCI 2021. [DOI: 10.1080/00450618.2021.1921266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Radwan Mail
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
- Department of Chemistry Malaysia (Kelantan Branch, Kota Bharu, Kelantan, Malaysia
| | - Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Vanitha Kunalan
- Narcotics Division, Forensic Science Analysis Centre, Department of Chemistry Malaysia (Headquarter), Petaling Jaya, Selangor, Malaysia
| | - Kah Haw Chang
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Ahmad Fahmi Lim Abdullah
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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Teoh WK, Md Muslim NZ, Ismail ML, Chang KH, Abdullah AFL. Quick determination and discrimination of commercial hand sanitisers using attenuated total reflectance-Fourier transform infrared spectroscopy and chemometrics. Anal Methods 2021; 13:1601-1611. [PMID: 33730137 DOI: 10.1039/d1ay00075f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Due to the outbreak of the COVID-19 pandemic, practicing personal hygiene such as frequent hand sanitising has become a norm. The making of effective hand sanitiser products should follow the recommended formulations, but the high demand worldwide for such affordable products could have made them a candidate for counterfeiting, thus deserving forensic determination and profiling for source determination or supply chain tracing. In this study, determination and discrimination of hand sanitisers was carried out by employing attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy combined with chemometrics. Fifty commercially available hand sanitisers were obtained from the market and analysed. ATR-FTIR profiles of each sanitiser were compared and decomposed by principal component analysis (PCA) followed by linear discriminant analysis (LDA). Physical observation enabled the discrimination of seven samples based on their respective colours, the presence of beads and their colours, and the physical forms of formulations. Subsequently, eight distinct patterns were observed through visual comparison of ATR-FTIR profiles of the remaining 43 samples. An initial unsupervised exploratory PCA model indicated the separation of two main groups with ATR-FTIR profiles similar to those of ethanol and isopropanol, respectively. The PCA score-LDA model provided good predictions, with a 100% correct classification into eight different groups. In conclusion, this study demonstrated a quick determination and discrimination of hand sanitiser samples, allowing screening for any restricted components and sample-to-sample comparison.
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Affiliation(s)
- Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
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Saisahas K, Soleh A, Promsuwan K, Phonchai A, Mohamed Sadiq NS, Teoh WK, Chang KH, Lim Abdullah AF, Limbut W. A portable electrochemical sensor for detection of the veterinary drug xylazine in beverage samples. J Pharm Biomed Anal 2021; 198:113958. [PMID: 33662759 DOI: 10.1016/j.jpba.2021.113958] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 01/15/2021] [Accepted: 02/04/2021] [Indexed: 01/15/2023]
Abstract
A portable electrochemical sensor was developed to determine xylazine in spiked beverages by adsorptive stripping voltammetry (AdSV). The sensor was based on a graphene nanoplatelets-modified screen-printed carbon electrode (GNPs/SPCE). The electrochemical behavior of xylazine at the GNPs/SPCE was an adsorption-controlled irreversible oxidation reaction. The loading of graphene nanoplatelets (GNPs) on the modified SPCE, electrolyte pH, and AdSV accumulation potential and time were optimized. Under optimal conditions, the GNPs/SPCE provided high sensitivity, linear ranges of 0.4-6.0 mg L-1 (r = 0.997) and 6.0-80.0 mg L-1 (r = 0.998) with a detection limit of 0.1 mg L-1 and a quantitation limit of 0.4 mg L-1. Repeatability was good. The accuracy of the proposed sensor was investigated by spiking six beverage samples at 1.0, 5.0, and 10.0 mg L-1. The recoveries from this method ranged from 80.8 ± 0.2-108.1 ± 0.3 %, indicating the good accuracy of the developed sensor. This portable electrochemical sensor can be used to screen for xylazine in beverage samples as evidence in cases of sexual assault or robbery.
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Affiliation(s)
- Kasrin Saisahas
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Asamee Soleh
- Center of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Kiattisak Promsuwan
- Center of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Division of Physical Science, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | - Apichai Phonchai
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand
| | | | - Way Koon Teoh
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Kah Haw Chang
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
| | - Ahmad Fahmi Lim Abdullah
- Forensic Science Programme, School of Health Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
| | - Warakorn Limbut
- Center of Excellence for Trace Analysis and Biosensors (TAB-CoE), Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand; Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla, 90112, Thailand.
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