Method development for the determination of cadmium in lipsticks directly by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry

Tinas, Hande; Özbek, Nil; Akman, Süleyman

doi:10.1016/j.microc.2018.01.031

Cited by 11 publications

(2 citation statements)

References 14 publications

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“…As shown in Table 3, the analytical techniques used to identify the chemical formulation of lipsticks are HR-CS-GFAAS [27], gas chromatography (GC) [5], capillary electrophoresis [28], and thin layer chromatography (TLC) [7]. Majority of these are destructive compromising the integrity of the evidence.…”

Section: Comparison Of the Present Study With Previous Workmentioning

confidence: 99%

Rapid and nondestructive analysis of lipstick on different substrates using ATR‐FTIR spectroscopy and chemometrics

Khei

Verma

Tan

et al. 2023

Journal of Forensic Sciences

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Lipstick can be an important piece of evidence in crimes like murders, rapes, and suicides. Due to its prevalence, it can be an important corroborative evidence in crime reconstruction. The analysis of such evidence can provide an evidentiary link between the suspect, the victim, object, or the crime scene. We report the use of nondestructive ATR‐FTIR spectroscopy combined with chemometrics for the classification of 10 brands of lipsticks with nine samples each. Chemometric method of partial least square‐discriminant analysis (PLS‐DA) has been employed to interpret the data and classify the samples into their respective classes. The PLS‐DA model provides an AUC figure above 0.99 in all brands except one; for which it is slightly less at 0.94. We have also tested the traces of these lipstick samples on different substrates treating them as unknowns in the already trained PLS‐DA model. 100% of the samples on nine substrates viz. a cotton, nylon, plastic, dry tissue, denim (blue jeans), wet tissue, nitrile gloves, white paper, and polyester were correctly attributed to their source brand. In conclusion, the results suggest that ATR‐FTIR combined with the chemometrics is a rapid, nondestructive, and accurate method for the discrimination and source attribution of lipstick. This study has potential for use in actual forensic casework conditions.

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Section: Comparison Of the Present Study With Previous Workmentioning

confidence: 99%

Rapid and nondestructive analysis of lipstick on different substrates using ATR‐FTIR spectroscopy and chemometrics

Khei

Verma

Tan

et al. 2023

Journal of Forensic Sciences

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show abstract

“…The efficient analytical techniques for determination of Cd have been widely reported, such as atomic fluorescence spectrometry (AFS), [11][12][13] inductively coupled plasma mass spectrometry (ICP-MS), 14,15 atomic absorption spectroscopy (CVG-AAS) [16][17][18] and high performance liquid chromatography. 19 Although the above mentioned techniques are accurate and efficient, many of them either require costly equipment or skilled operators.…”

Section: Introductionmentioning

confidence: 99%

An Ultrasensitive Colorimetric Strategy for Detection of Cadmium Based on the Peroxidase-like Activity of G-Quadruplex-Cd(II) Specific Aptamer

et al. 2018

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We rationally designed an ultrasensitive and label-free sensing platform for determination of cadmium (Cd). The sensing platform contains G-quadruplex-Cd(II) specific aptamer (GCDSA) constructed by incorporating G-rich sequence at the end of 5′ and the critical domain of the Cd-4 aptamer. GCDSA designed act as both a special recognition sequence for Cd 2+ and a signal DNAzyme. In absence of Cd 2+ , GCDSA may mainly exist in a random coil sequence. Upon addition of Cd 2+ , GCDSA could probably be induced to fold into a G-quadruplex structure. The generation of plentiful active G-quadruplex interacts with hemin to form a peroxidase-like DNAzyme, leading to increased absorbance signal of the sensing system. ΔA was directly proportional to the two segments of concentrations for Cd 2+ , with the detection of limit of 0.15 nM. The proposed method avoids the labeled oligonucleotides and allows directly quantitative analysis of the samples by cheap instruments, with an excellent dynamic range.

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Toxic and potentially toxic elements determination in cosmetics used for make-up: A critical review

Mesko

Novo

Costa

et al. 2020

Analytica Chimica Acta

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Method development for the determination of cadmium in lipsticks directly by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry

Cited by 11 publications

References 14 publications

Rapid and nondestructive analysis of lipstick on different substrates using ATR‐FTIR spectroscopy and chemometrics

Rapid and nondestructive analysis of lipstick on different substrates using ATR‐FTIR spectroscopy and chemometrics

An Ultrasensitive Colorimetric Strategy for Detection of Cadmium Based on the Peroxidase-like Activity of G-Quadruplex-Cd(II) Specific Aptamer

Toxic and potentially toxic elements determination in cosmetics used for make-up: A critical review

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