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Agilent Low Level Measurement of Cadmium in Foods Application Note
This document outlines a procedure for determining cadmium concentrations in animal and plant tissues, including dairy products, grains, fruits, vegetables, and oil seeds. The method is suitable for cadmium concentrations in the range of 0.01-0.3 µg/g. The process involves digesting samples via wet ashing, complexing cadmium with ammonium pyrrolidine dithiocarbamate (APDC), and extracting it into di-isobutyl ketone (DIBK). The organic phase is then stripped with dilute nitric acid, and the resulting aqueous phase is analyzed using Graphite Furnace Atomic Absorption Spectroscopy (GFAAS).
Read onlineAgilent AA-875 specifications
| Applicable Cadmium Concentration Range | 0.01-0.3 µg/g |
|---|---|
| Instrumentation Used | Agilent GTA 95 with Agilent AA-875 |
| Detection Limit (Solution) | Better than 0.0005 mg/mL Cd |
| Reporting Limit (Grains) | 0.02 mg Cd/g |
Source: Agilent Low Level Measurement of Cadmium in Foods Application Note
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Questions answered in these manuals
What is the suitable range for cadmium concentration in this method?
The method is suitable for cadmium concentration in the range 0.01-0.3 µg/g.
From: Agilent Low Level Measurement of Cadmium in Foods Application Note
Which instruments are used for the analysis?
An Agilent GTA 95 graphite furnace atomizer with autosampler is used with an Agilent AA-875.
From: Agilent Low Level Measurement of Cadmium in Foods Application Note
How much alloy sample is required for the analyses?
The analyses can be accomplished with only 15 milligrams of alloy.
What size drill bit was used to remove samples from the vessels?
Samples were removed using a small No. 60 steel drill bit.