Determination of heavy metals for the quality control in argentinian herbal medicines by ETAAS and ICP-OES

Gómez, María R.; Cerutti, Soledad; Sombra, Lorena L.; Silva, María Fernanda; Martínez, Luis D.

doi:10.1016/j.fct.2006.12.013

Cited by 120 publications

(66 citation statements)

References 22 publications

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“…The estimation of heavy metals was analyzed by using atomic absorption spectroscopy (Shimadzu-AA6300). 26 The results obtained were expressed in terms of parts per million (PPM) per gram of drug.…”

Section: Quantitative Determination Of Heavy Metal and Mineralsmentioning

confidence: 99%

Quality Control standardization of Wild Himalayan Pear: Pyrus pashia

Hemalatha¹,

Sharma²,

Prasad³

2016

Phcogj

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Introduction: To establish the pharmacognostical and phytochemical standardization parameters of Pyrus pashia fruits in order to ensure quality and safety of this traditionally acclaimed medicinal tree. Methods: The fresh fruits of P. pashia were collected and dried. Fruit was subjected to various pharmacognostical investigations, Extraction procedures, and preliminary phytochemical screening, according to WHO guidelines. Ethanolic extract was standardized to total phenolic and flavonoid content, followed by phyto chemical quantification of P. pashia extract using lupeol as a chemical marker by HPLC method. Results: In the present study, microscopy of the fruit showed typical characteristics of berry, having thick fleshy pericarp differentiated into thin epicarp and thick mesocarp having wide radiating carpel chambers with one or two seeds attached in axile placentum. Further, physicochemical evaluation was done like, loss on drying, total ash value, acid insoluble ash value, water soluble ash value, fluorescence analysis etc. Heavy metal and pesticide residue analysis was also performed. Furthermore, ethanolic extract of Pyrus pashia (EPP) obtained from cold maceration and phytochemical screening of different fractions obtained by

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Section: Quantitative Determination Of Heavy Metal and Mineralsmentioning

confidence: 99%

Quality Control standardization of Wild Himalayan Pear: Pyrus pashia

Hemalatha¹,

Sharma²,

Prasad³

2016

Phcogj

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“…Rosette leaves are pinnate (9-35cm long), petiole size ranging from 1.5-10cm having a hairy rachis. Leaflets are [10][11][12][13][14][15][16][17][18][19][20] pairs, elliptic, up to 10-30mm long and 5-12mm wide gradually smaller towards the base of the leaf. The flowers are pentamerous or sometimes hexamerous bearing yellow coloured petals.…”

Section: Potentilla Mooniana Wight (Synonym: Potentilla Polyphyllamentioning

confidence: 99%

“…The estimation of heavy metals was analyzed by using atomic absorption spectroscopy (Shimadzu-AA6300). [13] …”

Section: Pesticide Residue and Heavy Metal Estimationmentioning

confidence: 99%

Pharmacognostical and phytochemical standardization of the roots of Potentilla mooniana Wight

Laloo¹,

Prasad²,

Kumar³

et al. 2014

Phcog J.

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Background: Potentilla mooniana Wight. (PM) (Family: Rosaceae) is a plant commonly grown at the higher altitudes (1500-3660 meter) of the lower Asian continent and is traditionally used to treat gastric and mouth disorders. The present study was aimed to scientifically develop a standard monograph for PM on the basis of pharmacognostical and phytochemical aspects. Methods: Pharmacognostically the roots were analyzed following the standard parameters prescribed under WHO guidelines and Indian Herbal Pharmacopoeia. Results: Morphologically, the roots are cylindrical, dark brown and astringent to bitter in taste. Histologically, the root section showed the formation of secondary growth with wood formation and central lignified xylem vessels. Physicochemical standards quantified includes foreign organic matter (1.20% w/w), loss on drying (9.66% w/w), total ash (12.65% w/w), acid insoluble ash (4.65% w/w), water soluble ash (0.5% w/w), alcohol soluble extractive (21.3% w/w), water soluble extractive (14.6% w/w), foaming index (142.85), swelling index (6.5), haemolytic index (37.77). Quantification of pesti cide residue content and heavy metals such as Pb, Cd, Zn and Hg was analyzed and were found to be present within the permissible limits. Powdered drug showed the presence of lignified xylem vessels with scalariform and spiral thickenings, tracheids, starch grains and fibres. Phytochemical screening showed the presence of phenolics, tannins, flavonoids, steroids, saponins, sugars, and amino acids. Quantification of phytoconstituents were also investigated such as phenolics (84.15mg/g tannic acid equivalent, TAE), tannins (65.31mg/g TAE), flavonoids (9.53mg/g rutin equivalent, RE), flavonols (2.01mg/g RE), saponins (20.75mg/g diosgenin equivalent, DE), sapogenins (15.4mg/g DE) and carbohydrates (56.8mg/g D-fructose equivalent). TLC of the root extract was also analyzed in the present study. Conclusion: In conclusion, the diagnostic characters obtained from the roots of P. mooniana will provide beneficial information in identifying and comparing this plant from other closely related Potentilla species.

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“…AAS operating parameters are as shown in Table 2. For liquid dosage forms, 1 ml of the liquid sample was taken in a 100 ml flask and made up to 100 ml with deionized water [9]. For viscous suspensions, a few drops of nitric acid (65 %) were added to digest the particles, In either case, the solution was filtered, processed and analyzed as described above for solid dosage forms.…”

Section: Sample Preparationmentioning

confidence: 99%