Rapid determination of furosemide by combined spot test/diffuse reflectance spectroscopy to detect doping in sport

Luiz, Vitor Hugo Marques; Pezza, Leonardo; Pezza, Helena Redigolo

doi:10.1016/j.microc.2012.04.002

Cited by 9 publications

(8 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the search for alternatives that are environmentally more friendly, the use of diffuse reectance spectroscopy has been described for the analysis of drugs, 21,22 pesticides, 23 and other contaminants. 24 The association of diffuse reectance spectroscopy with the spot test is eco-friendly, because it consists of a simple, fast, inexpensive technique that generates small amounts of waste with low toxicity, minimizing or even eliminating risks to the operator or to the environment.…”

Section: Introductionmentioning

confidence: 99%

A new eco-friendly methodology for the determination of Amaranth dye in foodstuffs using diffuse reflectance spectroscopy

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

A new eco-friendly methodology for the determination of Amaranth dye in foodstuffs using diffuse reflectance spectroscopy

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…The limit of detection (LOD) and limit of quantification (LOQ) were determined according to IUPAC recommendations 25 LOD = 3 ×(s/S) and LOQ = 10 ×(s/S), where ''s'' is the standard deviation of measurements of the blank (n = 10) and ''S'' is the slope of the linear dynamic range. 26 The LOD and LOQ were 0.05 and 0.5 mg/L, respectively.…”

Section: Validation Of the Proposed Methodsmentioning

confidence: 94%

“…Possible matrix interferences were studied using standard additions, and the accuracy of the method was tested using the recovery of Al. 26 Recovery tests were performed by water sample and jellyfish sample with known amounts of Al standard, followed by detection using the proposed method. The results obtained for jellyfish and water samples are presented in Table 1.…”

Section: Validation Of the Proposed Methodsmentioning

confidence: 99%

Determination of Aluminum in Edible Jellyfish Using Chrome Azurol S with Spot Test on Filter Paper

Cheng

Zhang

et al. 2017

ANAL. SCI.

View full text Add to dashboard Cite

Aluminum (Al) has been well known as an environmental factor that may affect several enzymes and other biomolecules related to Alzheimer's disease. The increasing use of Al in the preparation and storage of food currently represents the main form of Al exposure for the general public. The present study was aimed to develop a household procedure for the rapid test determination of Al in edible jellyfish. The method was developed based on the reaction of Chrome Azurol S with Al in acidic medium, forming a colored compound on the surface of filter paper. Experimental design methodologies were used to optimize the measurement conditions. The proposed method was applied successfully to the analysis of Al in edible jellyfish products in clinical laboratory and household settings.

show abstract

“…Paper provides a good solid platform for diffuse reflectance measurements, due its high contrast and bright white background [22]. Paper platforms can be obtained from renewable sources and require the use of minimal volumes of reagent and sample, generating a negligible waste that is easily incinerated [23]. In order to improve the analytical response and color uniformity, the paper platforms used for spot tests can be impregnated with wax, creating hydrophobic barriers so that the solutions applied are restricted to the delimited area [24].…”

Section: Introductionmentioning

confidence: 99%

A paper platform for colorimetric determination of aluminum hydrochloride in antiperspirant samples

Silvestre

Milani

Rossini

et al. 2018

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

Self Cite

View full text Add to dashboard Cite

A simple, fast, low-cost, portable, and eco-friendly method using a spot test on a paper platform, together with diffuse reflectance spectroscopy, was developed and validated for the quantification of aluminum hydrochloride, a potential neurotoxic agent, in antiperspirant samples. The determination of aluminum hydrochloride was performed at a wavelength of 615 nm, by measuring consumption of the purple colorimetric reagent Alizarin S, due to reaction with aluminum. The linear range was from 10.0 to 125.0 mg L and could be described by the equation: A = 0.4479 - 0.002543 C (R = 0.999). The limits of detection (LOD) and quantification (LOQ) were 3.06 and 10.2 mg L, respectively. The method was specific, accurate, and repeatable, with relative standard deviation (RSD) <5.0%. The recovery was between 92.2 and 103.4%. The method was successfully used for the determination of aluminum hydrochloride in commercial antiperspirant samples, revealing concentrations below the maximum permitted by current legislation.

show abstract

Rapid determination of furosemide by combined spot test/diffuse reflectance spectroscopy to detect doping in sport

Cited by 9 publications

References 29 publications

A new eco-friendly methodology for the determination of Amaranth dye in foodstuffs using diffuse reflectance spectroscopy

A new eco-friendly methodology for the determination of Amaranth dye in foodstuffs using diffuse reflectance spectroscopy

Determination of Aluminum in Edible Jellyfish Using Chrome Azurol S with Spot Test on Filter Paper

A paper platform for colorimetric determination of aluminum hydrochloride in antiperspirant samples

Contact Info

Product

Resources

About