Object

This publication is protected and available only for logged users.
This publication is protected and available only for logged users.

Title: Determination of Zn(II), Cu(II), Se(IV), Cd(II) and Pb(II) by stripping voltammetry in the raw plant materials

Abstract:

In this work methods for the determination of zinc, copper, selenium, cadmium and lead by stripping voltammetry was developped. The developed method was validated by procedure including the analysis of certified reference materials: mixed polish herbs (IC-INCT-MPH-2), tea leaves (INCT-TL-1), virginia tobacco leaves (CTA-VTL-2) and bovine liver (BCR-185). The application of this method was confirmed by the analysis of plant raw materials. The results for selected raw materials did not differ significantly from the results obtained for selected raw materials by total reflection X-ray fluorescence spectrometry (TXRF).Evaluation was performed for 64 plant materials derived from 61 species and 24 families of plants tested for the analyzed elements in the various morphological parts of plants. To determine the correlation between the elements studied, Pearson correlation analysis, principal component analysis (PCA) and cluster analysis were used.Based on the results of the tests concentration range of elements in the raw plant materials was specified, which for zinc was 9.5 - 59 mgkg-1, copper 0.7 - 13 mgkg-1, selenium 11.6 - 489 gkg-1, cadmium 0.1 - 0.86 mgkg-1 and lead 0.05 - 2.41 mgkg-1. In each tested group positive correlations of raw materials for a couple Zn/Cu was established, which was the most significantly correlated in the group of herbs. Strongly positively correlated pair of elements (Cd/Pb) was observed in the group of herbs (r = 0.825, p < 0.05) and seeds and fruits (r = 0.826, p < 0.05). However, negative correlation (r = -0.690, p < 0.05) was shown between copper and cadmium content in the seeds and fruits.

Place of publishing:

Kraków

Level of degree:

2 - studia doktoranckie

Degree discipline:

chemia

Degree grantor:

Uniwersytet Jagielloński. Collegium Medicum. Wydział Farmaceutyczny. Katedra Chemii Nieorganicznej i Analitycznej.

Promoter:

Jan Krzek

Date issued:

2012

Format:

application/pdf

Identifier:

oai:dl.cm-uj.krakow.pl:3479

Call number:

ZB-116999

ControlNumberVIRTUA:

click here to follow the link

Access rights:

tylko w bibliotece

Location of original object:

Biblioteka Medyczna Uniwersytetu Jagiellońskiego- Collegium Medicum

Object collections:

Last modified:

May 24, 2021

In our library since:

Mar 11, 2013

Number of object content hits:

9

Number of object content views in PDF format

9

All available object's versions:

http://dl.cm-uj.krakow.pl:8080/publication/3479

Show description in RDF format:

RDF

Show description in OAI-PMH format:

OAI-PMH

Edition name Date
ZB-116999 May 24, 2021
×

Citation

Citation style:

This page uses 'cookies'. More information