The ninhydrin process in supercritical carbon dioxide

被引：0
|
作者：
Hewlett, DF [1 ]
Winfield, PGR [1 ]
Clifford, AA [1 ]
机构：
[1] UNIV LEEDS, SCH CHEM, LEEDS LS2 9JT, W YORKSHIRE, ENGLAND
来源：
JOURNAL OF FORENSIC SCIENCES | 1996年 / 41卷 / 03期
关键词：
forensic science; ninhydrin; fingerprints; latent fingerprints; supercritical carbon dioxide; carbon dioxide;
D O I：
暂无
中图分类号：
DF [法律]; D9 [法律]; R [医药、卫生];
学科分类号：
0301 ; 10 ;
摘要：
Ninhydrin is a widely used reagent for the development of latent fingerprints on porous surfaces. For the past 20 years 1,1,2-trichlorotrifluoroethane (CFC113) has been used as the solvent of choice in the UK for ninhydrin because of its non-toxicity and non-flammability. With the phasing out of CFC solvents under the terms of the Montreal Protocol on the Control of Ozone Depleting Substances, the need for a suitable replacement has arisen. Supercritical CO2 has been found to be a potential replacement for CFCI13 in the ninhydrin process. Furthermore, the present processes are two-stage (impregnation of reagent followed by development in an oven), whereas using supercritical CO2 development of fingerprints can be carried out in one stage.
引用
收藏
页码：487 / 489
页数：3
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