Abstract：
:Opium is the raw material for the production of heroin, and the characterization of opium seizures through laboratory analysis is a valuable tool for law enforcement agencies to trace clandestine opium production and trafficking. In this work, a method for opium profiling based on the relative content of five principal and 14 minor opium alkaloids was developed and validated. UPLC-Q-TOF was adopted in alkaloid analysis for its high selectivity and sensitivity, which facilitated the sample preparation and testing. The authentic sample set consisted of 100 "Myanmar" and 45 "Afghanistan" opium seizures; based on the data set of the 19 alkaloid variables in them, a partial least squares discriminant analysis classification model was successfully achieved. Minor alkaloids were found to be vitally important for opium profiling, although combined use of both principal and minor alkaloids resulted in the best geographical classification result. The developed method realized a simple and accurate way to differentiate opium from Myanmar and Afghanistan, which may find wide application in forensic laboratories.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Liu C,Hua Z,Bai Ydoi
10.1111/1556-4029.13190subject
Has Abstractpub_date
2016-11-01 00:00:00pages
1615-1621issue
6eissn
0022-1198issn
1556-4029journal_volume
61pub_type
杂志文章abstract：:The present study analyzed apical translucency and periodontal recession on single-rooted teeth in order to generate age-at-death estimations using two inverse calibration methods and one Bayesian method. The three age estimates were compared to highlight inherent problems with the inverse calibration methods. The res...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2008.00713.x
更新日期：2008-05-01 00:00:00
abstract：:This research examined differences in decomposition rate and manner of domestic pig subjects (Sus scrofa) in never frozen (control) and previously frozen (experimental) research conditions. Eight control and experimental subjects were placed in an identical outdoor research environment. Daily quantitative and qualitat...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12717
更新日期：2015-05-01 00:00:00
abstract：:In this work, we present a measuring methodology for long bones of the limbs (humerus, femur, and tibia) of human corpses. Measurements of cadaveric height and long bone lengths were conducted on 72 corpses (20 females and 52 males) from the School of Medicine at the National Autonomous University of Mexico. Additiona...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12459
更新日期：2014-09-01 00:00:00
abstract：:DNA was isolated from casework urine samples previously submitted for toxicological analysis. The quality and quantity of DNA isolated was determined by spectrofluorometry and agarose yield gel electrophoresis. Hae III restricted samples were then resolved by analytical agarose gel electrophoresis, transferred to a me...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1994-11-01 00:00:00
abstract：:Hae III has been selected by our laboratories as the restriction endonuclease of choice for restriction fragment length polymorphism analysis of forensic science samples. The enzyme is compatible with the D2S44 probe system and generates relatively small DNA fragments for that marker system. Similarly, Hae III is comp...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
abstract：:Sudden unexplained nocturnal death syndrome (SUNDS) is widely considered to be related to hereditary fatal arrhythmias. Hyperpolarization-activated cyclic nucleotide-gated channel 4 (HCN4) channels are widely distributed in sinus myocytes and play a profound role in generating pacemaker electro-activity in cardiomyocy...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13958
更新日期：2019-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type：
doi：10.1111/1556-4029.13844
更新日期：2019-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13505
更新日期：2018-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:An improved method of grouping hair, based on the alleles of PGM observed by isoelectric focusing, has been described. The increased discriminating power of this system (0.77) compared to that obtained by the starch gel technique (0.55) provides a new and more sensitive means of typing hair. ...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1979-04-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2011.01959.x
更新日期：2012-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:Allele frequencies for the locus D1S80 were determined in African American, Caucasian, Southeastern Hispanic, Southwestern Hispanic, and Oriental sample populations using the polymerase chain reaction and subsequent electrophoresis and silver staining of the amplified products. Due to the presence of anodal and cathod...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1995-01-01 00:00:00
abstract：:Concerns over the toxic by-products produced by traditional ammunition have led to an increase in popularity of nontoxic ammunition. In this work, the chemical composition of six brands of nontoxic ammunition was investigated and compared to that of a road flare, which served as an environmental source with similar co...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12881
更新日期：2016-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1986-10-01 00:00:00
abstract：:Data from 100 cases of alleged rape victims demonstrate why the author believes the AP test to be a reliable tool, when employed by an expert for the identification of seminal fluid. ...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1978-10-01 00:00:00
abstract：:We describe a case of fatal methemoglobinemia (MetHb-emia) resulting from application of liniment solution containing large quantities of sodium nitrite. As a remedial treatment of atopic dermatitis, the liniment solution was applied all over the boy's body. Autopsy findings showed no significant macroscopic or micros...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2007.00627.x
更新日期：2008-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1997-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2012.02230.x
更新日期：2012-09-01 00:00:00
abstract：:This paper documents the 36-year history, with five examples, of fatal road rage in Marion County, Oregon. Relevant details (all that were available) from each case are presented. Alcohol intoxication was present in four of our five cases. We include two deaths by gunshot at close range, two deaths as a result of a mo...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2000-03-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1998-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13645
更新日期：2018-05-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2012.02196.x
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abstract：:Suspects in shooting investigations in Chicago are routinely transported in department vehicles and detained in department facilities prior to gunshot residue (GSR) evidence collection. The GSR test results are used to associate the suspect with primary exposure to GSR. The potential for these vehicles and facilities ...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2007.00457.x
更新日期：2007-07-01 00:00:00
abstract：:A method for the identification and quantitation of two tricyclic antidepressants, amoxapine (Asendin) and trimipramine (Surmontil) is presented here. Samples were extracted with hexane at pH 10, back-extracted with 1.0N sulfuric acid. The acidic layer was adjusted to pH 10 and re-extracted with hexane. Electron impac...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
abstract：:Although nitrite is widely used in meat processing, it is a major toxicity hazard to children and is responsible for the blue-baby syndrome. A simple and effective method to determine nitrite in whole blood has been devised using ion chromatography with suppressed conductivity detection. The blood sample was deprotein...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12918
更新日期：2016-01-01 00:00:00
abstract：:In cases where there is limited antemortem information, the examination of unidentified human remains as part of the investigation of long-term missing person's cases is a complex endeavor and consequently requires a multidisciplinary approach. Bomb pulse dating, which involves the analysis and interpretation of 14C c...
journal_title：Journal of forensic sciences
pub_type： 杂志文章,评审
doi：10.1111/1556-4029.14227
更新日期：2020-05-01 00:00:00
abstract：:The contribution of a physical anthropologist to a forensic investigation is generally associated with analysis of skeletal remains in a laboratory. This case, which deals with the identification of two U.S. journalists who disappeared in Guatemala in March 1985, shows that the observations of a physical anthropologis...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:Five South Portuguese Caucasian subpopulations were analyzed for the HLA-DQA1, LDLR, GYPA, HBGG, D7S8 and Gc loci. Genotype distributions for these loci did not deviate from Hardy-Weinberg expectations. The allele and genotype frequencies found have been compared with previously published data from North and Central P...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
