The Development of Novel Ninhydrin Analogues

Hansen, Darren B.; Joullié, Madeleine M.

doi:10.1002/chin.200533347

Cited by 13 publications

(14 citation statements)

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“…Researchers of reagents for use on porous surfaces and into fingermark composition have stated that amino acid reagents such as 1,2-indandione, DFO and ninhydrin will continue to develop fingermarks on older paper items [12,13]. This has been practically demonstrated in a pseudo-operational trial environment where Marriott et.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Visualising the past – An evaluation of processes and sequences for fingermark recovery from old documents

et al. 2019

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Section: Accepted Manuscriptmentioning

confidence: 99%

Visualising the past – An evaluation of processes and sequences for fingermark recovery from old documents

et al. 2019

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“…It is estimated that the average amino acid content of a fingerprint is 250 ng [17]. Amino acids present on the surfaces of the hands have been studied previously in the 1960s, although not in the context of latent fingerprints per se [18,19,20].…”

Section: Introductionmentioning

confidence: 99%

Variation in amino acid and lipid composition of latent fingerprints

Croxton

Baron

Butler

et al. 2010

Forensic Science International

197

210

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The enhancement of latent fingerprints, both at the crime scene and in the laboratory using an array of chemical, physical and optical techniques, permits their use for identification. Despite the plethora of techniques available, there are occasions when latent fingerprints are not successfully enhanced. An understanding of latent fingerprint chemistry and behaviour will aid the improvement of current techniques and the development of novel ones. In this study the amino acid and fatty acid content of 'real' latent fingerprints collected on a non-porous surface was analysed by gas chromatography-mass spectrometry.Squalene was also quantified in addition. Hexadecanoic acid, octadecanoic acid and cis-9-octadecenoic acid were the most abundant fatty acids in all samples. There was, however, wide variation in the relative amounts of each fatty acid in each sample. It was clearly demonstrated that touching sebum-rich areas of the face immediately prior to fingerprint deposition resulted in a significant increase in the amount of fatty acids and squalene deposited in the resulting 'groomed' fingerprints. Serine was the most abundant amino acid identified followed by glycine, alanine and aspartic acid. The significant quantitative differences between the 'natural' and 'groomed' fingerprint samples seen for fatty acids were not observed in the case of the amino acids. This study demonstrates the variation in latent fingerprint composition between individuals and the impact of the sampling protocol on the quantitative analysis of fingerprints.

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“…Once formed, it undergoes decarboxylation and the resulting intermediate reacts with another molecule of ninhydrin (Fig. 11) to yield the purple chromophore (Friedman, 2004;Hansen and Joullie, 2005).…”

Section: Condensation Of Pena With Formaldehydementioning

confidence: 99%

Enantioresolution of dl‐penicillamine

Bhushan

Kumar

2009

Biomedical Chromatography

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Penicillamine (PenA) is a nonproteinogenic amino acid containing a thiol group. The three functional groups in penicillamine undergo characteristic chemical reactions and differ in their ability to participate in various chemical and biochemical reactions. d-penicillamine is more active pharmacologically, while the l-isomer occurs 'naturally'. This review deals with the enantioresolution of PenA both by direct and indirect methods using liquid chromatography. HPLC separation of its diastereomers prepared with different chiral derivatizing reagents (on reversed-phase columns) and separation of the derivatives prepared with achiral reagents (on chiral columns or via ligand exchange mode) has been discussed. Separation of enantiomers tagged with achiral reagent (to add a chromophore for ehanced detection) when there is no diastereomer formation has been considered separately. In addition, application of PenA and its derivatives as chiral selector for enentioresolution of certain other compounds has also been discussed.

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The Development of Novel Ninhydrin Analogues

Abstract: For Abstract see ChemInform Abstract in Full Text.

Cited by 13 publications

References 1 publication

Visualising the past – An evaluation of processes and sequences for fingermark recovery from old documents

Visualising the past – An evaluation of processes and sequences for fingermark recovery from old documents

Variation in amino acid and lipid composition of latent fingerprints

Enantioresolution of dl‐penicillamine

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