 Home > News > Company Dynamic > Important progress has been made in the same measurement technology of heavy metal mercury and cadmium

Important progress has been made in the same measurement technology of heavy metal mercury and cadmium

 foodmate 2023-01-03

Recently, the innovation team of "Agricultural Product Quality and Safety Risk Assessment" from the Institute of Agricultural Quality Standards and Testing Technology of the Chinese Academy of Agricultural Sciences has innovatively developed a composite platinum-plated nickel foam enrichment trap (Pt/Ni) internationally, by plating nickel foam materials , so that the surface of the platinum layer is formed, the first time to achieve the synchronous enrichment of heavy metals mercury (Hg) and cadmium (Cd) after the introduction of electrothermal evaporation. The relevant research results have been published in the top journal in the field of analytical chemistry, Analytical Chemistry.

In recent years, the problem of heavy metal pollution in the environment has attracted widespread attention in the society, which will not only pollute the soil of farmland, but also accumulate in agricultural products due to biomagnification, thus posing a serious threat to animal and plant safety and human health. However, the existing conventional detection technology is time-consuming and cumbersome, and it is difficult to analyze directly and quickly on site, while electrothermal evaporation technology (ETV) can directly analyze solid samples without complex sample processing, which is a current research hotspot, but direct evaporation of solid samples will introduce serious matrix interference, thereby affecting its accurate determination. Gas phase enrichment technology realizes the efficient separation of analyte and matrix by specifically capturing the element to be tested, which is an effective means to eliminate matrix interference, but it is currently impossible to achieve simultaneous enrichment of mercury (Hg) and cadmium (Cd) elements, and the separate enrichment device leads to a low degree of integration of the instrument, which is not conducive to the miniaturization of the device.

In this study, by plating nickel foam materials to form a platinum layer on the surface, the synchronous capture of Hg and Cd after the introduction of electrothermal evaporation was realized for the first time, and then the complete release of Hg and Cd was realized by heating the composite trap. X-ray photoelectron spectroscopy and scanning electron microscopy were used to verify the enrichment mechanism of Hg and Cd, and revealed that both Hg and Cd were atomic states during evaporation, transport, capture and release. By combining with miniaturized cermet evaporator (MCH) and atomic fluorescence detector, a new type of miniaturized mercury-cadmium detector was constructed, and the detection limit reached 0.04~0.4 μg/kg, which realized the rapid, sensitive and accurate determination of mercury cadmium in soil samples. This technology provides technical support for further realizing the on-site and miniaturization of heavy metal speed measurement instruments, and creates a precedent for the further development of multi-element synchronous enrichment and simultaneous detection technology.

The first author of the paper is Liu Tengpeng, a doctoral student, and the corresponding authors are Professor Liu Jixin, senior engineer and researcher Mao Xuefei from the Institute of Agricultural Quality Standards and Testing Technology, Chinese Academy of Agricultural Sciences.

food&nutrition trend

 Disclaimer: ECHEMI reserves the right of final explanation and revision for all the information.

BeiGene: Bizean new indication marketing authorization application accepted

It is expected that the global crude oil market will maintain a tight balance in 2023

Comment

Comment

You May Interested In

buy Cagrilintide Peptides 99% Hight purity Weight Loss Peptide 5mg 10mg Fast Shipping





Popular Tags

Daily Morning Brief

2026-10-19

China Launches New Hydrogen Energy Comprehensive Pilot Program with Central Funding Support

Woodside Pauses Scarborough Pre-Commissioning Due to Greenpeace Protest

Venezuela Targets Nearly $76 Billion Oil Investment Over Five Years

Woodside natural gas project unit paused after Greenpeace protest off Western Australia

Canadaâs Carney Makes Final Appeal Against Alberta Separation Ahead of Referendum

View All

Trade Alert

Delivering the latest product trends and industry news straight to your inbox.
(We'll never share your email address with a third-party.)

Recommend Reading

Hot Searches: defoamer food; sodium nitrite buy; caustic soda suppliers; carbon black price; reta weight loss buy; buy 2cb; 2cb buy online; glp-3 retatrutide where to buy; agricultural insecticides; cholorate; dichlorormethane; skytropha



Feedback & Suggestions

Send Message

Thank you for your feedback. If you require further assistance, please contact us by email at info@echemi.com or call us at +86-532-55729510.

Important progress has been made in the same measurement technology of heavy metal mercury and cadmium

BeiGene: Bizean new indication marketing authorization application accepted

It is expected that the global crude oil market will maintain a tight balance in 2023

You May Interested In

Cagrilintide Peptides 99% Hight purity Weight Loss Peptide 5mg 10mg Fast Shipping

High purity 99% GHK-CU for Skin Repair 50mg/100mg Peptides Spot supplies

Glow70/KLOW80 99% China Peptides Warehouse Direct Delivery Lyophilized Powder in Stock

Raw Peptides Powder RT KLOW CHK-CU NAD Wholesale Chinese factory 99% Peptides

Hight Purity Raw powder Wholesale Peptide 99% Weight Loss low price

SS-31 Cosmetic peptides, discounted price improving cognitive impairment factory supply

Related News

Recommend Reading