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Heavy Metals Package Test

  • Price

    $160 per sample

  • Turnaround time

    7 - 9 Business Days

  • Rush

    Available

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Heavy Metals Package Test

Technical data sheet

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Method description

For Arsenic, Cadmium, and Lead: Samples are prepared by microwave closed vessel digestion with nitric acid. Solutions are infused into an ICP-MS instrument to perform identity and quantitation based on the linear response of the elements using calibration standards containing the elements with internal standards. For Mercury: Solid or liquid samples are dried and thermally decomposed in a continuous flow of oxygen and the combustion products are passed over a hot catalyst bed. The remaining decomposition products are carried to a gold amalgamator that selectively traps mercury. After removal of any remaining gases or decomposition products, the amalgamator is rapidly heated to release the mercury in the vapor form. The vaporous mercury is analyzed using atomic absorption spectrophotometry at 245 nm with quantitation as compared to a calibration curve.

Acceptable matrices

Food Products, Food Ingredients, Nutraceuticals, Beverages

Unacceptable matrices

Some classes of compounds are unsuitable for closed vessel microwave digestion as they are highly reactive with nitric acid and other oxidizers which may become nitrated and potentially explosive. These include: Animal fat (lard), pure fats and oils, glycerin and glycols, volatile flavoring agents, and alcoholic beverages. If you have a question regarding your matrix, please call customer service at 1-800-245-5615.

Limit of quantitation

10 ng/g (ppb) for Arsenic, Cadmium, and Lead. For Mercury, 2-12 ppb depending on the sample matrix.

Equipment

Iodide Ion Selective Electrode by Hanna Instruments

Method reference

For Arsenic, Cadmium, and Lead assays: AOAC 993.14 and 2015.06 EPA 7473 "Mercury in Solids and Solutions by Thermal Decomposition, Amalgamation, and Atomic Absorption Spectrophotometry" for Mercury assay.

Reportable unit

ppb = ng/g

Sample size requirements

10 g

Information required by submitter

Please supply estimates

Additional information

This test will only measure total Arsenic (both organic and inorganic). For a measurement of total Arsenic as well as a measurement of the organic and inorganic Arsenic please contact customer service at 1-800-245-5615.

*Prices and offerings are subject to change without notice.

Common Heavy Metals Package Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.

Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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Medallion Labs

A food testing program designed with mid-market and enterprise food and ingredient manufacturers in mind.