Solution | Determination of spiked recovery rate and desalination rate in high-salinity samples using atomic absorption spectroscopy by EWAI
Release Date：2026-09-14
In the field of food testing (e.g., soy sauce, pickled foods), environmental monitoring (seawater, industrial wastewater), and chemical product analysis, the detection of trace heavy metals (e.g., lead, cadmium) in high-salinity samples has long faced two major challenges: strong substrate interference and low sample pretreatment efficiency. Taking the detection of heavy metal contamination in seawater as an example, the sodium ion (Na⁺) concentration can reach tens of thousands of mg/L; traditional methods often require multiple dilutions or complex masking treatments, which not only raise the detection limits for the target elements (Pb, Cd) but may also introduce human error due to the cumbersome operational procedures, making it difficult to accurately determine the concentration of trace heavy metals. To address this challenge, EWAI has introduced the high-salinity extraction column technology. This technology utilizes ion exchange to selectively adsorb Na⁺ while simultaneously enriching Pb and Cd; this approach prevents the loss of target elements and significantly enhances detection sensitivity, ultimately establishing a comprehensive "desalination–enrichment–detection" integrated methodology.
| Application Field: | Release Date:2026-09-14 |
| Test Sample: | Test Parameters:Pharmaceutical Industry |
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| Reference Standards: |
Configuration
AA-7050 Atomic Absorption Spectrometer
Model No.: AA-7050
|
Brand: EWAI
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Solution | Determination of spiked recovery rate and desalination rate in high-salinity samples using atomic absorption spectroscopy by EWAI
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