PAHs in animal tissues – the analytics of PAHs in new reference materials and their homogeneity

2017 ◽  
Vol 9 (1) ◽  
pp. 76-83 ◽  
Author(s):  
Anna Kiełbasa ◽  
Bogusław Buszewski
Keyword(s):  
Reference Materials ◽  
Animal Tissues ◽  
Biological Matrices ◽  
Certified Values

Extraction and determination of PAHs in biological matrices of new reference materials, and determination of certified values and homogeneity of these materials are described.

Dry Ashing, Hydride Generation Atomic Absorption Spectrometric Determination of Arsenic and Selenium in Foods

1982 ◽  
Vol 65 (3) ◽  
pp. 647-650 ◽  
Author(s):  
Gerard K H Tam ◽  
Gladys Lacroix
Keyword(s):  
Detection Limit ◽  
Atomic Absorption ◽  
Reference Materials ◽  
Hydride Generation ◽  
Spectrometric Method ◽  
Flameless Atomic Absorption ◽  
Dry Ashing ◽  
Atomic Absorption Spectrometric ◽  
Certified Values

Abstract A dry ashing, flameless atomic absorption spectrometric method was evaluated to determine arsenic and selenium in foods. Samples were dry-ashed with Mg(N03)2-MgO and dissolved in HC1. Selenate was reduced to selenite by boiling in 4N HC1, and arsenate to arsenite by treatment with KI. Hydrides of arsenic and selenium were generated by the addition of NaBH4 and were swept by nitrogen and hydrogen into a thermally heated silicate tube furnace. The detection limit was about 5 ppb for each element based on a 10 g sample. Analytical results obtained for several samples of NBS reference materials agreed with the certified values. The procedure was evaluated by another laboratory and results were satisfactory.

Simple Automated Wet Digestion of Animal Tissues for Determination of Seven Elements by Atomic Absorption Spectroscopy

1985 ◽  
Vol 68 (2) ◽  
pp. 218-220
Author(s):  
Craig D Salisbury ◽  
Wayne Chan
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Bovine Liver ◽  
Animal Tissues ◽  
Wet Digestion ◽  
Block System ◽  
Liver And Kidney ◽  
Certified Values

Abstract A simple, automated wet digestion procedure was developed for the quantitative determination by atomic absorption spectroscopy (AAS) of arsenic, cadmium, copper, mercury, lead, selenium, and zinc in animal tissue. A commercial digestion block system with automated temperature programming was used. Recoveries of all elements from spiked bovine liver and kidney samples exceed 95%. The analytical results obtained for samples of NBS Bovine Liver (No. 1577a) agree well with certified values. The procedure is safe and requires minimum analyst time.

Ratio primary reference measurement procedure (RPRMP) for the certification of chromium content in biological reference materials

2019 ◽  
Vol 107 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Iga Zuba ◽  
Halina Polkowska-Motrenko
Keyword(s):  
Chromium Content ◽  
Measurement Procedure ◽  
Radiochemical Neutron Activation Analysis ◽  
Animal Tissues ◽  
Reference Measurement ◽  
Reference Measurement Procedure ◽  
Primary Reference ◽  
Definition Of ◽  
Certified Values

Abstract Primary reference measurement procedure for Cr determination in biological samples by radiochemical neutron activation analysis (RNAA) has been elaborated. The procedure is based on quantitative and selective separation of chromium from neutron irradiated sample by column chromatography using MnO2-Resin and determination of 51Cr by γ-ray spectrometry. Quality components have been incorporated into the RNAA method which makes it possible to meet the requirements of the definition of ratio primary reference measurement procedure. The usefulness of the elaborated procedure to assign the certified values for Cr in new certified reference material (CRMs) based on animal tissues is demonstrated. The tentative certified values for Cr have been proposed for: MODAS M-4 Cormorant Tissue and M-5 Cod Tissue CRMs.

µSPE followed by HPLC-MS/MS for the determination of series D and E resolvins in biological matrices

2021 ◽  
pp. 114181
Author(s):  
Federico Fanti ◽  
Eleonora Oliva ◽  
Daniel Tortolani ◽  
Camilla Di Meo ◽  
Marina Fava ◽  
...  
Keyword(s):  
Biological Matrices

scholarly journals THE DETERMINATION OF LIPIDE INOSITOL IN ANIMAL TISSUES

1953 ◽  
Vol 201 (2) ◽  
pp. 609-613 ◽  
Author(s):  
Wanda E. Taylor ◽  
J.M. McKibbin
Keyword(s):  
Animal Tissues

An insight into the determination of size and number concentration of silver nanoparticles in blood using single particle ICP-MS (spICP-MS): Feasibility of application to samples relevant to in vivo toxicology studies

2021 ◽  
Author(s):  
Isabel Abad-Álvaro ◽  
Diego Leite ◽  
Dorota Bartczak ◽  
Susana Cuello ◽  
Beatriz Gomez-Gomez ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Single Particle ◽  
Number Concentration ◽  
Biological Matrices ◽  
Icp Ms ◽  
Toxicological Studies ◽  
Insight Into

Toxicological studies concerning nanomaterials in complex biological matrices usually require a carefully designed workflow that involves handling, transportation and preparation of a large number of samples without affecting the nanoparticle...

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