Optimisation and evaluation of 1,2-indanedione for use as a fingermark reagent and its application to real samples

Wallace-Kunkel, Christie; Lennard, Chris; Stoilovic, Milutin; Roux, Claude

doi:10.1016/j.forsciint.2006.06.006

Cited by 66 publications

(49 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another publication reported that when deciding with which reagent to process porous items (ninhydrin or 1,2‐indanedione), the latter would be the primary choice (15). Another recent publication reported that sequencing ninhydrin after processing with 1,2‐indandeione failed to produce a statistically significant number of additional prints (16). This result raised the possibility of eliminating both ninhydrin and DFO and using Ind exclusively in that laboratory.…”

mentioning

confidence: 99%

Use of an Optimized 1,2‐Indanedione Process for the Development of Latent Prints*

Bicknell¹,

Ramotowski²

2008

Journal of Forensic Sciences

View full text Add to dashboard Cite

1,2-Indanedione belongs to a class of compounds which have demonstrated great potential in the processing of latent prints, particularly in the area of fluorescence. However, variability in results achieved worldwide has precluded it from being used extensively. In order to isolate the cause of this variability, various components of the formulation were analyzed, including purity level of the indanedione, type of carrier solvent, and the use of ZnCl(2) both as a secondary application and incorporated into the reagent. Using a resultant optimized formulation (Ind-Zn), performance comparisons were then made in the areas of visible color development, fluorescence, and degree of substrate staining with those of 1,8-diazafluoren-9-one (DFO) for both fresh and aged prints. Moisture content of the paper substrates on which the prints had been deposited was measured and a correlation found with percentage ambient relative humidity (% RH). Determination of visible color and fluorescence as it corresponded to percentage moisture content allowed for defining critical threshold levels necessary for achieving optimal results. Correlating these values with % RH then allowed for the development of standard operating procedures for obtaining best possible print development. Through this work, it was determined that a 7.4% v/v formulation of Ind-Zn having petroleum ether as a carrier solvent yielded the most optimal results when processing methods optimized for % RH in the laboratory were utilized. Both initial color development and fluorescence were superior to that of DFO; prints developed with Ind-Zn were a minimum of 6.5 units dE* darker and more red than with DFO for all substrates tested. Processing with Ind-Zn on the majority of the substrates examined yielded fluorescence intensity values approximately four times greater than with DFO.

show abstract

mentioning

confidence: 99%

Use of an Optimized 1,2‐Indanedione Process for the Development of Latent Prints*

Bicknell¹,

Ramotowski²

2008

Journal of Forensic Sciences

View full text Add to dashboard Cite

show abstract

“…In a recent study, Wallace-Kunkel and coworkers determined that no advantage was to be gained by using 1,2-indanedione in sequence with ninhydrin compared to the use of 1,2-indanedione alone. This was in contrast to earlier studies and was thought to be due to the differences in reagent formulation used [109]. There have been significant disagreements concerning the optimum conditions for development of latent fingermarks, in part due to the lack of a standardized testing regime for new detection methods.…”

Section: Detection Of Latent Fingermarksmentioning

confidence: 72%

“…As is the case with formulation composition, there have been a wide variety of heating regimes proposed. This heat can be applied through the use of an oven [109], domestic iron [110], or laundry press [109]. Depending on the reagent, a certain level of humidity may also be required; for example, humidity improves the development obtained with ninhydrin and genipin [61,81].…”

Section: Detection Of Latent Fingermarksmentioning

confidence: 99%

Chemical Sensing and Detection in Forensic Science

Lewis

2011

Chemosensors

View full text Add to dashboard Cite

“…We did not use any additional components such as acetic acid and zinc salts, which have been shown to provide improved development with other reagents [26][27][28]. As a preliminary step in the current study, a number of lawsone formulations were investigated for their performance in developing latent fingermarks.…”

Section: Methods Developmentmentioning

confidence: 99%

Substituted naphthoquinones as novel amino acid sensitive reagents for the detection of latent fingermarks on paper surfaces

Jelly¹,

Lewis²,

Lennard³

et al. 2010

Talanta

View full text Add to dashboard Cite

In this paper, we present our preliminary studies into naphthoquinones as novel reagents for the detection of latent fingermarks on paper. Latent fingermarks deposited on paper substrates were treated with solutions of selected naphthoquinones in ethyl acetate/HFE-7100, with subsequent heating. The selected compounds were 1,4-dihydroxy-2-naphthoic acid, 1,2-naphthoquinone-4-sulfonate, 2-methoxy-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone. All of the tested compounds yielded purple-brown visible fingermarks, which also exhibited photoluminescence when illuminated with a high intensity filtered light source at 555 nm and viewed through red goggles. Indirect heat using an oven at 150 °C for 1 hour was found to be superior to direct heat with an iron, which while providing faster development lead to increased levels of background colouration. Luminescence spectrophotometry revealed differences in photoluminescence characteristics for fingermarks developed with the different naphthoquinones, with excitation over the range 530-590 nm. Luminescence spectrophotometry of developed lysine, glycine and serine spots on paper was used to confirm that the naphthoquinones were reacting with amino acids in the latent fingermark.

show abstract

Optimisation and evaluation of 1,2-indanedione for use as a fingermark reagent and its application to real samples

Cited by 66 publications

References 12 publications

Use of an Optimized 1,2‐Indanedione Process for the Development of Latent Prints*

Use of an Optimized 1,2‐Indanedione Process for the Development of Latent Prints*

Chemical Sensing and Detection in Forensic Science

Substituted naphthoquinones as novel amino acid sensitive reagents for the detection of latent fingermarks on paper surfaces

Contact Info

Product

Resources

About