Related Experiment Video
Updated: Jun 28, 2026

Biological Samples Preparation for Speciation at Cryogenic Temperature using High-Resolution X-Ray Absorption Spectroscopy
Published on: May 27, 2022
Hot-injection procedures for the rapid analysis of biological samples by electrothermal atomic-absorption
U K Kunwar1, D Littlejohn, D J Halls
1Department of Pure & Applied Chemistry, University of Strathclyde, Cathedral Street, Glasgow G1 1XL, U.K.
Abstract:
The combination of palladium/hydrogen matrix-modification and injection of samples into a graphite tube at 120 degrees has allowed the accurate determination of copper, iron, lead and nickel in biological reference materials (urine, milk powder and bovine liver). Palladium modification allowed the use of a standard ashing temperature of 1000 degrees for all four elements. Direct aqueous calibration was applied without the need for standard additions. The total heating cycle, from the start of sample injection, took 45 sec.
More Related Videos
Related Concept Videos
Atomic Absorption Spectroscopy: Atomization Methods
Atomic Emission Spectroscopy: Overview
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
Atomic Emission Spectroscopy: Instrumentation
Atomic Emission Spectroscopy: Lab
Atomic Absorption Spectroscopy: Overview
When irradiated by EMR of a particular wavelength, these...

