NDLI: Determination of lead in biological materials by microwave-assisted mineralization and flow injection electrothermal atomic absorption spectrometry

Content Provider	Royal Society of Chemistry (RSC)
Author	Burguera, J. L. Burguera, M.
Copyright Year	1993
Abstract	The design and operation of an on-line automated microwave-assisted mineralization and flow injection electrothermal atomic absorption spectrometric system for the determination of lead in biological materials are described. Certified reference materials were homogeneously dispersed in a 0.4% v/v Triton X-100 solution with an ultrasonic device. Mineralization of samples was accomplished with an HCl–HNO3 plug downstream in a PTFE coil located inside the microwave oven. A gas diffusion cell device allowed efficient degasification of mineralized samples. Precise volumes of the mineralized samples, collected in a capillary of a sampling arm assembly, were introduced by means of positive displacement with air through a time-based solenoid injector into the graphite furnace. The entire system was controlled by a computer, independent of the spectrometer. The spectrometer autosampler used for the introduction of the chemical modifier was pre-programmed to synchronize with the operation of the flow system. The linear range was from 0 to 70 µg l–1 of lead and the detection limit was 0.1 µg l–1(0.8 pg). The agreement between observed and certified values was good, except for the botanical samples Olive Leaves and Pine Needles (with an average recovery of about 90%). The main advantage of the method is that in this totally closed system with on-line sample mineralization low and repeatable blanks were obtained, allowing the rapid determination (about ten samples per hour) of lead in various biological matrices with minimum exposure to the environment and minimum operator attention.
Starting Page	235
Ending Page	241
Page Count	7
File Format	PDF
ISSN	02679477
Volume Number	8
Issue Number	2
Journal	Journal of Analytical Atomic Spectrometry
DOI	10.1039/JA9930800235
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Triton Atomic absorption spectroscopy Certified reference materials Triton X-100 Ultrasound Polytetrafluoroethylene Microwave oven Diffusion Degasification Solenoid Graphite Spectrometer
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Analytical Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Determination of lead in whole blood by electrothermal atomisation atomic absorption spectrometry using tube and platform atomisers and dilution with Triton X-100

Determination of zinc in human milk by electrothermal atomic absorption spectrometry

Fast determination of lead in commercial iron oxide pigments by graphite furnace atomic absorption spectrometry using a slurry technique

Vortex-assisted liquid–liquid microextraction coupled to flame atomic absorption spectrometry for lead determination: ionic liquid based microextraction using Triton X-100 as dispersant

Determination of lead in whole blood by graphite furnace atomic absorption spectrometry with matrix modification

Direct determination of cadmium and lead in geological and plant materials by electrothermal atomic absorption spectrometry

Determination of chromium in biological fluids by electrothermal atomic absorption spectrometry using wall, platform and probe atomization from different graphite surfaces

Determination of nickel in serum of haemodialysed patients by means of electrothermal atomic absorption spectrometry with deuterium background correction

Silver as internal standard for simultaneous determination of Cd and Pb in whole blood by electrothermal atomic absorption spectrometry

Determination of lead in biological materials by microwave-assisted mineralization and flow injection electrothermal atomic absorption spectrometry

Similar Documents

Determination of lead in whole blood by electrothermal atomisation atomic absorption spectrometry using tube and platform atomisers and dilution with Triton X-100

Determination of zinc in human milk by electrothermal atomic absorption spectrometry

Fast determination of lead in commercial iron oxide pigments by graphite furnace atomic absorption spectrometry using a slurry technique

Vortex-assisted liquid–liquid microextraction coupled to flame atomic absorption spectrometry for lead determination: ionic liquid based microextraction using Triton X-100 as dispersant

Determination of lead in whole blood by graphite furnace atomic absorption spectrometry with matrix modification

Direct determination of cadmium and lead in geological and plant materials by electrothermal atomic absorption spectrometry

Determination of chromium in biological fluids by electrothermal atomic absorption spectrometry using wall, platform and probe atomization from different graphite surfaces

Determination of nickel in serum of haemodialysed patients by means of electrothermal atomic absorption spectrometry with deuterium background correction

Silver as internal standard for simultaneous determination of Cd and Pb in whole blood by electrothermal atomic absorption spectrometry

Determination of lead in biological materials by microwave-assisted mineralization and flow injection electrothermal atomic absorption spectrometry