Sinais de fundo em análise instrumental: uma discussão essencial em cursos de graduação

Amais, Renata S.; Rocha, Fábio R.P.; Nóbrega, Joaquim A.

doi:10.21577/0100-4042.20160183

Cited by 1 publication

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References 42 publications

(45 reference statements)

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“…42 In these tests, the SBR parameter was used to indicate the most suitable atomization conditions for analyte quantification. 44 For the analysis of the CBD extracts, portions of about 0.1000 g were solubilized using different concentrations of 25% (m v -1 ) TMAH solution. For Pb, which was the first element studied, a full factorial design (2 3 ) was employed in order to achieve a better evaluation of the sample preparation variables, as well as their interaction effects.…”

Section: Optimization Of Instrumental Parameters and Sample Preparatimentioning

confidence: 99%

Simple GFAAS Method for Determination of Pb, As, and Cd in Cannabidiol Extracts Used for Therapeutic Purposes

Nascimento

Schultz

Gonzalez

et al. 2020

J. Braz. Chem. Soc.

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Cannabis sativa has many promising medicinal applications for the mitigation, or even cure, of chronic diseases. The high bioaccumulation potential of C. sativa enables its use for the phytoremediation and detoxification of soil, may increase the levels of inorganic elements in products such as cannabidiol (CBD) extracts being necessary the evaluation/monitoring of the level of inorganic components, mainly the toxic species in these formulations. An analytical method employing graphite furnace atomic absorption spectrometry (GFAAS) was developed for the quantification of Pb, As, and Cd in commercial CBD extracts and homemade samples. The alkaline solubilization was employed in agreement with the external analytical curve, in a robust method. The limits of quantification were 0.26 (Pb), 0.067 (As), and 0.011 μg g-1 (Cd), with satisfactory accuracy (80-120%) and relative standard deviation (RSD) values < 7%. The CBD extracts presented levels of Pb, As and Cd below the maximum limits established by regulatory agencies.

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Section: Optimization Of Instrumental Parameters and Sample Preparatimentioning

confidence: 99%

Simple GFAAS Method for Determination of Pb, As, and Cd in Cannabidiol Extracts Used for Therapeutic Purposes

Nascimento

Schultz

Gonzalez

et al. 2020

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

Sinais de fundo em análise instrumental: uma discussão essencial em cursos de graduação

Cited by 1 publication

References 42 publications

Simple GFAAS Method for Determination of Pb, As, and Cd in Cannabidiol Extracts Used for Therapeutic Purposes

Simple GFAAS Method for Determination of Pb, As, and Cd in Cannabidiol Extracts Used for Therapeutic Purposes

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