Forensic science luminescence

Considerably more work is required before these techniques can he introduced in court, hut our studies and the work of others show that photoluminescence techniques have potential for wide application in forensic science. Indeed, because of the significant advances demonstrated in recent years, one can expect to see spectrophotofluorometers become as commonplace as infrared spectrometers in a crime laboratory. Although luminescence spectrometry is not, in general, as specific as infrared spectrometry, it is considerably more sensitive and convenient. 

Solvent Extraction Principles. Forensic Sciences Drug Screening in Sport Systematic Drug Identification. Gas Chromatography Mass Spectrometry Chiral Separations. Immunoassays, Techniques Enzyme Immunoassays Luminescence Immunoassays. Liquid Chromatography Column Technology. Pharmaceutical Analysis Sample Preparation. 

See also Enzymes Immobilized Enzymes. Flow Injection Analysis Detection Techniques. Forensic Sciences DNA Profiling. Immunoassays, Techniques Luminescence Immunoassays. Liquid Chromatography Column Technology Instrumentation. 

Figure 4 The reaction between ninhydrin and an amino acid, leading to the production of a dark purple compound known as Ruhemann s purple. Further treatment with a metal salt (zinc(ll), cadmium(ll), or mercury(ll)) results in the formation of a luminescent coordination complex. (Reprinted with permission from Leonard CJ, Margot PA, Stems M, and Marrener RN (1987) Photoluminescent enhancement of ninhydrin developed fingerprints by metal complexation structural studies of complexes formed between Ruhemann s Purple and Group 11 b metal salts. Journal of Forensic Sciences 32 597-605.)...

StOecklein W, Franke M, and Goebel R (2001) Cathodo-luminescence in forensic science. Problems of Forensic Sciences XLVII 122-136. 

In order to prepare a diverse-stimuli responsive chemiluminescent probe, the SNS system was derivatised with luminol, a very well-known luminescent compound with applications in analytical, biotechnological and forensic sciences. PSNS-luminol (10) is not fluorescent, but is chemiluminescent after reaction with H2O2 and cations like Cu, Fe, Cd and Pb. Due to these characteristics, PSNS-luminol can be applied to the detection of reactive ojq gen species and different cations, as shown in Fig. 5. 

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