ISO 17025 认证

Vitamin & Mineral Testing Services

Quantitative analysis of vitamins and minerals for accurate label claim verification.

Vitamin and mineral testing at Qalitex Laboratories

Vitamin and mineral testing quantifies the potency of fat-soluble vitamins (A, D, E, K), water-soluble vitamins (B-complex, C), and essential minerals (calcium, zinc, iron, selenium) in dietary supplements using HPLC, UV-Vis, and ICP-MS methods to verify label claim accuracy.

Vitamins and minerals are highly regulated in dietary supplements and foods. Qalitex Laboratories provides quantitative potency testing for all major vitamins and minerals, ensuring your label claims are accurate, FDA-compliant, and defensible in audits.

Vitamins We Test

We test fat-soluble vitamins (A, D, E, K1, K2) and water-soluble vitamins (C, B1 thiamine, B2 riboflavin, B3 niacin, B5 pantothenic acid, B6 pyridoxine, B7 biotin, B9 folate, B12 cobalamin) using HPLC, UV-Vis, and microbiological assay methods.

Minerals & Trace Elements

Using ICP-MS and ICP-OES, we quantify essential minerals including calcium, magnesium, zinc, iron, copper, selenium, chromium, manganese, and iodine. Results are compared against label claims and regulatory limits (USP, EU, and national standards).

Label Claim Compliance

We help brands stay compliant with FDA label claim tolerances (USP <905> for uniformity), ensuring supplement facts panels accurately reflect nutrient content. Critical for FDA enforcement defense, retailer audits, and Amazon listing compliance.

检测项目与方法

✓ Fat-soluble vitamins (A, D, E, K)
✓ Water-soluble vitamins (B-complex, C)
✓ Mineral panel by ICP-MS
✓ Label claim verification
✓ Potency at end of shelf life

法规标准与合规性

USP vitamin monographs
AOAC validated methods
FDA 21 CFR label tolerances
EU Directive 2002/46/EC

服务行业

Multivitamin manufacturers
Single-nutrient supplement brands
Prenatal & children's supplements
Functional food & beverage
Amazon FBA supplement sellers

ISO 17025

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其他服务

常见问题

Which vitamins and minerals does Qalitex test?

Qalitex tests all major fat-soluble vitamins (A, D, E, K1, K2) and water-soluble vitamins (C, B1, B2, B3, B5, B6, B7, B9, B12) using HPLC and UV-Vis methods, plus essential minerals (calcium, magnesium, zinc, iron, selenium, chromium, and more) by ICP-MS.

What are FDA label claim tolerances for vitamins?

The FDA sets specific tolerances for nutrient content vs. label claims per USP <905> uniformity standards. Qalitex performs label claim verification testing to ensure your supplement facts panel accurately reflects actual nutrient content and meets FDA enforcement standards.

Can Qalitex test vitamin potency at end of shelf life?

Yes, Qalitex provides potency testing at both time of manufacture and end of shelf life as part of stability studies. This is critical for vitamins that degrade over time, ensuring label claims remain accurate throughout the product's expiration date.

专项检测页面

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Vitamin & Mineral Testing for FDA compliance

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Vitamin & Mineral Testing for Product launch

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Vitamin & Mineral Testing for Quality control

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