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abstract::In previous experimental studies on heroin metabolites excretion in urine, the first sample was often collected a few hours after intake. In forensic cases, it is sometimes questioned if a positive urine result is expected e.g., 30 min after intake. The aim of this study was to investigate urinary excretion of heroin ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkx017
更新日期:2017-06-01 00:00:00
abstract::Calibration model selection is required for all quantitative methods in toxicology and more broadly in bioanalysis. This typically involves selecting the equation order (quadratic or linear) and weighting factor correctly modelizing the data. A mis-selection of the calibration model will generate lower quality control...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkx001
更新日期:2017-05-01 00:00:00
abstract::An existing GC-MS method for detecting benzoylecgonine (BZE) in urine was modified by changing derivatizing reagents. This method modification presents a cost-effective alternative derivatization procedure for the detection of BZE in urine by GC-MS. The combination of pentafluoropropanol and acetic anhydride was found...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkx007
更新日期:2017-05-01 00:00:00
abstract::Publications reporting concentrations of caffeine in postmortem blood were reviewed if the cause of death was attributed to overdosing (poisoning) with drugs. Age and gender of the deceased, the manner of death (accident, suicide or undetermined) and types of co-ingested drugs were evaluated in relation to the concent...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章,评审
doi:10.1093/jat/bkx011
更新日期:2017-04-01 00:00:00
abstract::Urine drug testing is common for workplace drug testing, prescription management, emergency medicine and the criminal justice system. Unsurprisingly, with the significant consequences based upon the results of urine drug testing, a donor in need of concealing the contents of their sample is highly motivated to cheat t...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw119
更新日期:2017-03-01 00:00:00
abstract::The purpose of this study was to develop and validate a gas chromatography-mass spectrometry method to detect drugs of abuse in a single sample of tooth. Pulverized samples of dental materials were subjected to acid hydrolysis to detect opiates, cocaine and their metabolites. The residual dental materials from these a...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw105
更新日期:2017-01-01 00:00:00
abstract::Use of methiopropamine (MPA), a synthetic metamfetamine analog, has been detected since 2011 in Europe, but there is limited information on its acute toxicity. A 30-year-old man was admitted to the emergency department in a confused state, with paranoid delusion, auditory and visual hallucinatory experiences, and inco...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw073
更新日期:2016-11-01 00:00:00
abstract::A 24-year-old man known to consume illegal drugs was found dead in his apartment. A reclosable plastic zipper bag containing several hundred milligrams of a brown powder was found close to the dead body and the first assumption of the investigators was death due to heroin intoxication. Therefore, a legal autopsy was o...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw096
更新日期:2016-11-01 00:00:00
abstract::The popularity of designer drugs has increased over the past few years as users seek new, cheap and sometimes "legal" ways to get high. This case report focuses on a case that happened in the City of Henderson, Nevada, which involved the designer drug methoxetamine. Methoxetamine is a psychoactive compound that is str...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw054
更新日期:2016-10-01 00:00:00
abstract::The effects of decomposition microclimate on the distribution of dextromethorphan (DXM) and dextrorphan (DXT) in skeletonized remains of rats acutely exposed to DXM were examined. Animals (n = 10) received DXM (75 mg/kg, i.p.), were euthanized 30 min post-dose and immediately allowed to decompose at either Site A (sha...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw083
更新日期:2016-10-01 00:00:00
abstract::Oxymorphone (OM), a prescription opioid and metabolite of oxycodone, was included in the recently published proposed revisions to the Mandatory Guidelines for Federal Workplace Drug Testing Programs. To facilitate toxicological interpretation, this study characterized the time course of OM and its metabolite, noroxymo...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw064
更新日期:2016-10-01 00:00:00
abstract::A forensic standard procedure is described that combines enzyme-linked immunoassay for screening and gas chromatography-mass spectrometry (GC-MS) for confirmation to detect drugs of abuse in a sample before used to detect opioids and cocaine. We used two equal aliquots of the same previously selected cannabinoid posit...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv120
更新日期:2016-07-01 00:00:00
abstract::Continuing our previous studies analyzing drugs of abuse in municipal wastewater, a method was developed for the analysis of opiates in wastewater samples using liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS). Eight opiate drugs and metabolites were analyzed including codeine, hydrocodone, hydro...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw022
更新日期:2016-06-01 00:00:00
abstract::Cyanohydrins, also be called cyanoalcohols, are important industrial precursors to carboxylic acids and some amino acids. Acetone cyanohydrin (ACH) and formaldehyde cyanohydrin (glycolonitrile, FCH), which are the typical examples of cyanohydrins, are classified as extremely hazardous substances. As the cyanohydrins c...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw023
更新日期:2016-06-01 00:00:00
abstract::Screening for emerging drugs of abuse, specifically synthetic cathinones and synthetic cannabinoids, is difficult for high-throughput laboratories as immunoassay kits are often unavailable. Consequently, most laboratories employ liquid chromatography-tandem mass spectrometry (LC-MS-MS) screening, which can be complex ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw025
更新日期:2016-06-01 00:00:00
abstract::Anticoagulant rodenticides are the largest group of poisons used to kill harmful rodents. Their fundamental mode of action consists in the inhibition of the vitamin K epoxide reductase, which causes blood-clotting alteration, ultimately leading to hemorrhagic events as the cause of death. In this study, we developed a...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw019
更新日期:2016-05-01 00:00:00
abstract::Clonazepam, nitrazepam and flunitrazepam are frequently used benzodiazepines, both as prescribed medication and as drugs of abuse. Little is, however, known about how these drugs are excreted in oral fluid. It has been claimed that the parent drugs are more likely to be detected in oral fluid than the 7-amino metaboli...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkw020
更新日期:2016-05-01 00:00:00
abstract::A multi-residue analytical method was developed for the determination in amniotic fluid (AF) of 13 illicit phenethylamines, including 12 compounds never investigated in this matrix before. Samples were subject to solid-phase extraction using; hydrophilic-lipophilic balance cartridges which gave good recoveries and low...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv143
更新日期:2016-04-01 00:00:00
abstract::Synthetic cannabinoids emerged on the designer drug market in recent years due to their ability to produce cannabis-like effects without the risk of detection by traditional drug testing techniques such as immunoassay and gas chromatography-mass spectrometry. As government agencies work to schedule existing synthetic ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv137
更新日期:2016-04-01 00:00:00
abstract::Phenazepam and etizolam were the first uncontrolled benzodiazepines available for sale in the UK. Pyrazolam, flubromazepam and diclazepam are not used medicinally anywhere in the world; they are produced exclusively for the uncontrolled, recreational market. It is important to know whether potentially abused drugs lik...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv122
更新日期:2016-03-01 00:00:00
abstract::The detection of 6-acetylmorphine (6-AM) in urine by immunoassay methods is challenging due to its short half-life and its similarity in structure to many commonly abused opiates that are often present at very high concentrations in urine. Current 6-AM homogeneous enzyme immunoassays use lyophilized reagents because o...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv090
更新日期:2015-11-01 00:00:00
abstract::Due to the lack of certified reference material, a reliable quantification in complex postmortem matrices can only be performed either by the addition of isotope-labelled standards or by the standard addition method. Although standard addition is a basic quantification procedure, its practical implementation is challe...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv078
更新日期:2015-11-01 00:00:00
abstract::Oral fluid (OF) is increasingly used for clinical, forensic and workplace drug testing as an alternative to urine. Uncertainties surrounding OF collection device performance, drug stability and testing reproducibility may be partially responsible for delays in the implementation of OF testing in regulated drug testing...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv093
更新日期:2015-10-01 00:00:00
abstract::The effects of storage time and temperature on blood alcohol concentration were evaluated in this two-part study involving 34 ethanol-negative and 21 ethanol-positive volunteers. Multiple 10-mL Vacutainer(®) blood tubes containing 100 mg of sodium fluoride and 20 mg of potassium oxalate were collected from living pers...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv061
更新日期:2015-09-01 00:00:00
abstract::The Substance Abuse and Mental Health Services Administration (SAMHSA) is currently evaluating hydrocodone (HC) for inclusion in the Mandatory Guidelines for Federal Workplace Drug Testing Programs. This study evaluated the time course of HC, norhydrocodone (NHC), dihydrocodeine (DHC) and hydromorphone (HM) in paired ...
journal_title:Journal of analytical toxicology
pub_type: 临床试验,杂志文章
doi:10.1093/jat/bkv050
更新日期:2015-09-01 00:00:00
abstract::The effect of long-term room temperature storage on the stability of ethanol in whole blood specimens was investigated. One hundred and seventeen preserved whole blood case samples (110 of 117 with two tubes of blood in each case) were used for this study. One tube from each case was initially tested for blood alcohol...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv037
更新日期:2015-07-01 00:00:00
abstract::The opioids codeine and morphine have legitimate uses in managing chronic pain conditions, but they are frequently abused. Patients prescribed opioids submit urine samples for medication compliance monitoring, and the interpretation of the results is complex. The purpose of this study was to evaluate the percentage of...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv031
更新日期:2015-06-01 00:00:00
abstract::Uncertainty is an inherent property of all measurements. The magnitude of this uncertainty will determine the number of meaningful digits that should be reported in a measurement result. Several statistical arguments are considered providing evidence that three digit truncated results are more appropriate than two sin...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv025
更新日期:2015-06-01 00:00:00
abstract::Sulfur mustard (SM) is a chemical warfare agent that causes painful blisters and chemically modifies endogenous biomacromolecules by alkylation to hydroxyethylthioethyl (HETE) adducts representing valuable long-term markers for post-exposure analysis. The albumin adduct formed in human plasma in vitro (HETE bound to t...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bkv010
更新日期:2015-05-01 00:00:00
abstract::A method for the simultaneous extraction of the hallucinogens psilocin, bufotenine, lysergic acid diethylamide (LSD) as well as iso-LSD, nor-LSD and O-H-LSD from hair with hydrochloride acid and methanol is presented. Clean-up of the hair extracts is performed with solid phase extraction using a mixed-mode cation exch...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku141
更新日期:2015-03-01 00:00:00
abstract::Postmortem femoral blood concentrations of the antipsychotic drugs aripiprazole, chlorprothixene and its metabolite, and quetiapine were determined by LC-MS-MS in 25 cases for aripiprazole and 60 cases each for chlorprothixene and quetiapine. For cases where the cause of death was not related to the considered drugs, ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku121
更新日期:2015-01-01 00:00:00
abstract::Urine drug testing (UDT) is an emerging standard of care in the evaluation and treatment of chronic non-cancer pain patients with opioid analgesics. UDT may be used both to verify adherence with the opioid analgesic regimen and to monitor abstinence from non-prescribed or illicit controlled substances. In the former s...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku109
更新日期:2015-01-01 00:00:00
abstract::Fentanyl and its analogs, such as acetylfentanyl, have become a concern for potential abuse. Fentanyl compliance monitoring and urine drug testing are becoming increasingly necessary; however, a limited number of fentanyl immunoassays have been validated for clinical use. The purpose of this study was to validate the ...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku103
更新日期:2014-11-01 00:00:00
abstract::During the investigation of aviation accidents, postmortem specimens from accident victims are submitted to the Federal Aviation Administration's Civil Aerospace Medical Institute (CAMI) for toxicological analysis. A case recently received by CAMI screened positive for the anticonvulsant medication carbamazepine (CBZ;...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku064
更新日期:2014-10-01 00:00:00
abstract::Gamma-hydroxybutyrate (GHB) is an endogenous compound, but its presence in postmortem blood presents a challenge when interpreting elevated levels as GHB is misused as a recreational drug and is also produced postmortem. A total of 387 postmortem cases (273 male and 114 female) submitted to the toxicology laboratory b...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku088
更新日期:2014-10-01 00:00:00
abstract::Hop-derived iso-α-acid (IAA) ingredient congeners are specific to beer. Concentrations of IAAs were determined in blood of five volunteers over 6 h following the consumption of small volumes of beer containing relatively high (Pale Ale beer) or low (wheat beer) concentrations of IAAs. IAAs were quickly absorbed with p...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku038
更新日期:2014-07-01 00:00:00
abstract::Postmortem redistribution (PMR) constitutes a multifaceted process, which complicates the interpretation of drug concentrations by forensic toxicologists. The present study aimed to apply quantitative structure-activity relationship (QSAR) analysis for modeling PMR data of structurally related drugs, 10 benzodiazepine...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku025
更新日期:2014-06-01 00:00:00
abstract::An automated solid-phase extraction (SPE) protocol followed by gas chromatography coupled with tandem mass spectrometry was developed for quantification of caffeine, cyamemazine, meprobamate, morphine and 6-monoacetylmorphine (6-MAM) in 11 biological matrices [blood, urine, bile, vitreous humor, liver, kidney, lung an...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku029
更新日期:2014-06-01 00:00:00
abstract::The misuse of the commonly used chemical diethylene glycol (DEG) has lead to many poisonings worldwide. Methods were developed for analysis of DEG and its potential metabolites; ethylene glycol, glycolic acid, oxalic acid, diglycolic acid and hydroxyethoxy acetic acid in human urine, serum and cerebrospinal fluid samp...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku018
更新日期:2014-05-01 00:00:00
abstract::Poisoning with agricultural chemicals is a major threat for wildlife all over the world. We have developed and validated an analytical scheme aimed to the identification and quantification of a wide range of pesticides in fresh liver from wildlife specimens that are routinely delivered to the forensic laboratories for...
journal_title:Journal of analytical toxicology
pub_type: 杂志文章
doi:10.1093/jat/bku009
更新日期:2014-04-01 00:00:00