Abstract：
:Traces of the improvised explosive urea nitrate can be characterized by a sensitive colorimetric reaction with p-dimethylaminocinnamalaldehyde (p-DMAC, UN-1 reagent). As recently shown, the dark red product has a structure of a protonated Schiff base. The unprotonated free base, previously postulated in the literature to be the colored product, was now prepared and fully characterized. It shows totally different spectroscopic properties from the dark red compound. Similarly, the analogous free base of the reaction between urea nitrate and the one-vinyl shorter reagent, p-dimethylaminobenzaldehyde, was synthesized and characterized. Similar differences between the free and protonated forms were observed. The protonated Schiff base spontaneously decomposes to the free base over time. This study provides the missing link in the elucidation of the colorimetric reaction between urea nitrate and UN-1. Both colored products show characteristics of typical acid-base indicators.
journal_name
Forensic Sci Intjournal_title
Forensic science internationalauthors
Rozin R,Almog Jdoi
10.1016/j.forsciint.2010.10.017subject
Has Abstractpub_date
2011-05-20 00:00:00pages
25-8issue
1-3eissn
0379-0738issn
1872-6283pii
S0379-0738(10)00476-7journal_volume
208pub_type
杂志文章abstract：:The hair samples of 15 grizzled patients with a permanent medical treatment by amitriptyline, carbamazepine, chlorprothixene, diclofenac, doxepine, indomethacine, maprotiline or metoclopramide, or with a chronic heroin and cocaine abuse were separated into white and pigmented fibers and both fractions were independent...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/s0379-0738(96)02048-8
更新日期：1997-01-17 00:00:00
abstract：OBJECTIVES:To evaluate medical statement conclusions in the criminal-legal process in suspected cases of child sexual abuse (CSA). STUDY DESIGN:An observational study of a random sample of 130 medically examined, police reported CSA suspected cases during 2001-2009. Medical statements were evaluated and their conclusi...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2014.03.006
更新日期：2014-06-01 00:00:00
abstract：:We report about a fatal cytisine intoxication in a 20-year-old man who, according to his mother, had drunken tea prepared from plant material of Laburnum anagyroides with the toxic pyridine-like alkaloid as ingredient, which exhibits pharmacological effects similar to nicotine. Using a liquid chromatographic-mass spec...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2009.01.011
更新日期：2009-04-15 00:00:00
abstract：BACKGROUND:Post-mortem Computed Tomography (PMCT) allows non-invasive or minimally invasive detection of findings that may or may not be visible during conventional autopsy, however, it does not allow the investigator to draw any conclusions regarding patency of the vessel's lumen. To address this deficiency, Post-mort...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2020.110171
更新日期：2020-03-01 00:00:00
abstract：:Two cases of fatalities are reported of which the recreational use of Mitragyna speciosa ("kratom") could be confirmed. One of these cases presents with one of the highest postmortem mitragynine concentrations published to date. Our results show that even extremely high mitragynine blood concentrations following the c...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2016.12.020
更新日期：2017-02-01 00:00:00
abstract：:We study in this paper the expanding behaviour of hollow point 9 mm Parabellum projectiles (Hornady XTP(®) and Speer Gold Dot(®)). We defined a deformation rate that takes into account both the diameter increase and the length reduction. We plotted the behaviour of this parameter versus impact velocity (we refer to th...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2011.12.007
更新日期：2012-06-10 00:00:00
abstract：:Forensic toxicological analyses have traditionally focused on the use of blood, body fluids, and certain organs in examinations of deaths due to intoxication. However, in some situations, putrefaction and contamination make proper sampling from tissues impossible, such as in exhumation cases. In these cases, bone marr...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2009.04.017
更新日期：2009-08-10 00:00:00
abstract：:In this work, we present population genetic data of 10 X-chromosome STRs (DXS8378, DXS9898, DXS8377, HPRTB, GATA172D05, DXS7423, DXS6809, DXS7132, DXS101 and DXS6789) obtained from sample of 145 unrelated female individuals belonging to Valencia (Spain), a region located in the east of the Iberian Peninsula. All the m...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2006.10.023
更新日期：2007-12-20 00:00:00
abstract：:Foreign body aspiration is frequently encountered in young children, in the majority of cases it will not lead to an adverse outcome. However, in case of coin battery ingestion more serious adverse outcomes, including death, have been reported. We present a case with fatal outcome due to exsanguination, of a 2-year-ol...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2010.02.001
更新日期：2010-05-20 00:00:00
abstract：:Dental age assessments are widely used to estimate age of immature skeletal remains. Most methods have relied on fractional stages of tooth emergence and formation, particularly of the permanent dentition, for predicting the age of infants and very young children. In this study, the accuracy of regression equations of...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2006.11.006
更新日期：2007-10-02 00:00:00
abstract：:In view of a potential future use for dating hemorrhage in forensic medicine the correlation of MR relaxation parameters with time was evaluated in blood samples. A systematic relationship could be valuable for using MRI for estimating the age of hemorrhage and soft tissue hematomas particularly in clinical forensic m...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2016.02.032
更新日期：2016-05-01 00:00:00
abstract：:Human teeth are biological structures that resist extreme conditions thus becoming a useful source of DNA for human forensic identification purposes. When it is possible, forensic prefer only non-damaged teeth whereas those with cavities are usually rejected to avoid both external and internal bacterial contamination....
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2015.08.021
更新日期：2015-12-01 00:00:00
abstract：:To study the potential use of insects remains as toxicological indicators, we measured morphine in desiccated entomological materials using a radioimmunoassay method (Coat-A-Count Serum Morphine, Dade Behring, France) following enzymatic hydrolysis.First, enzymatic cuticle extraction of morphine (pronase digestion pre...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/s0379-0738(01)00428-5
更新日期：2001-08-15 00:00:00
abstract：:Leukotriene B4 (LTB4) in skin samples from seven forensic cases was detected by HPLC to distinguish their antemortem or postmortem origin. In total, there were thirteen antemortem and seven postmortem specimens. The results showed that LTB4 was found in all antemortem wound specimens which were either fresh, or refrig...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/0379-0738(96)01938-x
更新日期：1996-07-31 00:00:00
abstract：:Based on the analysis of shrunken heads referred to our forensic laboratory for anthropological expertise, and data from both anthropological and medical literature, we propose a complete forensic procedure for the analysis of such pieces. A list of 14 original morphological criteria has been developed, based on the g...
journal_title：Forensic science international
pub_type： 历史文章,杂志文章
doi：10.1016/j.forsciint.2012.06.009
更新日期：2012-10-10 00:00:00
abstract：:For prospective investigation of drugs and metabolites in archaeological and contemporary dental calculus, a sensitive, broadly applicable ultra-high-performance liquid chromatography-tandem mass spectrometry method using pneumatically assisted electrospray ionisation (UHPLC-ESI-MS/MS) was developed. The dental calcul...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2020.110647
更新日期：2021-02-01 00:00:00
abstract：:Cocaine abuse is widespread all over the world, and is performed generally by sniffing, injecting or smoking cocaine or crack. The distinction between the recreational use of cocaine from the practice of the so called "coqueo" is still an issue in those countries where this habit is diffused and where it is not consid...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2012.09.005
更新日期：2013-04-10 00:00:00
abstract：:The castor bean plant, Ricinus communis, grows wild throughout many regions of Australia. The seeds of the plant contain the schedule 1 chemical agent ricin, a type II ribosomal inhibiting protein. Currently there are limited analytical techniques that can be applied in analysis of the seeds to establish attribution. ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2016.11.029
更新日期：2017-01-01 00:00:00
abstract：:In January 2015, 75 people died and 177 were hospitalized in the Mozambique village of Chitima after attending a funeral. The deaths were linked to the consumption of a traditional African beverage called pombe. Samples of the suspect pombe were subjected to myriad analyses and compared to a control sample. Ultimately...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2016.10.015
更新日期：2017-01-01 00:00:00
abstract：:Cyanoacrylate fuming, rhodamine 6G staining and 532 nm laser light visualization were used to reveal a thirty-year-old fingermark on a plastic bag discovered at a double homicide scene. ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2019.04.025
更新日期：2019-07-01 00:00:00
abstract：:The fingerprints are very typical for a human being. The present study was undertaken to study the gender differences in fingerprint ridge density in Chinese and Malaysian population. The study done on 200 subjects (100 males and 100 females) of Chinese origin and 100 subjects (50 males and 50 females) of Malaysian or...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2009.12.055
更新日期：2010-04-15 00:00:00
abstract：:Molecular analyses in a post-mortem setting are becoming increasingly common, particularly in cases of sudden unexplained death, with the aim of identifying genetic mutations which may be responsible for causing death. In retrospective investigations, the access to suitable autopsy biological samples may be limited, a...
journal_title：Forensic science international
pub_type： 杂志文章,评审
doi：10.1016/j.forsciint.2017.09.020
更新日期：2017-11-01 00:00:00
abstract：:Gladiator remains from a recently unearthed cemetery in ancient Ephesus (Turkey) offer a unique opportunity for proving common theories involving the weaponry and techniques of gladiator fighting based on the evidence supplied by cranial bones. This mass grave is the first of its kind to undergo a thorough osteologica...
journal_title：Forensic science international
pub_type： 历史文章,杂志文章
doi：10.1016/j.forsciint.2005.10.010
更新日期：2006-07-13 00:00:00
abstract：:Writer characterization from images of handwriting has remained an important research problem in the handwriting recognition community that finds applications in forensics, paleography and neuropsychology. This paper presents a study to evaluate the effectiveness of an implicit shape codebook technique to recognize wr...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2019.05.014
更新日期：2019-08-01 00:00:00
abstract：:This paper describes the development and validation of a method for the analysis of office papers by measuring carbon isotopes using isotope ratio mass spectrometry (IRMS). The method development phase included testing protocols for storage, sample materials, set-up of the analytical run; and examining the effects of ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2013.05.009
更新日期：2013-09-10 00:00:00
abstract：:In analogy to our previously published procedure for the differentiation of regioisomeric fluoroamphetamines a method was developed, to differentiate ring positional isomeric fluorocathinones by product ion spectrometry of ions generated by chemical ionization (CI) under GC-MS conditions using methane as reagent gas. ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2012.08.011
更新日期：2012-11-30 00:00:00
abstract：:The ability of human pelvic bones to sexually differentiate has been of great interest in forensic anthropology for quite some time as it allows for the determination of skeletal sex by combining metric and morphological data. However, the criteria for determining the sex of a skeleton must be calibrated according to ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2012.06.014
更新日期：2012-10-10 00:00:00
abstract：:A new method was developed for the simultaneous detection and quantitation of 6-acetyl-morphine (MAM), amphetamine, benzoylecgonine (BZE), cocaine, codeine, dihydrocodeine, EDDP (methadone metabolite), methadone and morphine in hair. The hair samples were washed, cut into 2-cm segments, pulverized, incubated with phos...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/0379-0738(93)90273-d
更新日期：1993-12-01 00:00:00
abstract：:Two sewing needles were found in a woman's cranial cavity by X-ray examination after she had sustained traffic injury. After investigation and analysis, it has been confirmed that the sewing needles were inserted by others when she was an infant, and not by the traffic injury. ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/s0379-0738(01)00470-4
更新日期：2001-10-15 00:00:00
abstract：:Direct detection of amphetamine type stimulants (ATSs) including methylamphetamine (MA) in street samples and biological matrices without the need for pretreatment or extraction is a great challenge for forensic drug analysis. Electrochemical techniques, such as electrochemiluminescence (ECL), are promising tools for ...
journal_title：Forensic science international
pub_type： 杂志文章
doi：10.1016/j.forsciint.2016.02.048
更新日期：2016-07-01 00:00:00
