Understanding the Evaluation of Heavy Metal Content
The purpose of the Metal Analysis test is to determine the amount and types of metallic elements present in a liquid, biological tissue, solid material or extract of a solid material.
| Available Metals | ||
|---|---|---|
| Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium | Cobalt Copper Iron Lead Magnesium Molybdenum Manganese Nickel Potassium | Selenium Silver Sodium Thallium Titanium Vanadium Zinc |
Analyses of other elements are also available.
Testing Categories and Specifications
| Test Name | Sample Needed | Turn-Around Time |
|---|---|---|
| Heavy Metals—USP Method I | 20 grams | 2-3 weeks |
| Heavy Metals Analysis for 8 elements | depends on testing requirements | 2-3 weeks |
| Metals Analysis – Screening (ICP/MS) | 10 mL - 25 mL | 2-3 weeks |
| Mercury Analysis | depends on testing requirements | 2-3 weeks |
| Conductivity USP <645> | 50 mL or per specified extraction ratio | 1-2 weeks |
| Total Organic Carbon (TOC) USP <643> | 45 mL or per specified extraction ratio | 2-3 weeks |
| pH USP <791> | 25 mL or per specified extraction ratio | 1-2 weeks |
| Fourier Transform InfraRed (FTIR) Scan, USP <197> | 5 g or 10 cm2 | 1-2 weeks |
| Sample Analysis by UV/Vis, USP <197> | 10 mL or per specified extraction ratio | 1-2 weeks |
| Water Determination by Karl Fischer USP <921> | depends on water content, normally 5 g or 10 cm2 | 1-2 weeks |
| Loss on Drying USP <731> | 5g | 1-2 weeks |
| Residual Solvents USP <467> | Depends on testing requirements | 1-2 weeks |
| Analysis for di(2-ethylhexyl) phthalate (DEHP) | 10 g or cm2 | 2-3 weeks |
| Analysis for bisphenol A (BPA | 10 g or cm2 | 2-3 weeks |
| Head-Space Analysis for Volatile Organic Compounds (VOC) by GC/MS | Depends on testing requirements | 2-3 weeks |
| Analysis for Volatile Organic Compounds (VOC) by GC/MS | Depends on testing requirements | 2-3 weeks |
| Analysis for Semi-Volatile Organic Compounds (SVOC) by GC/MS | Depends on testing requirements | 2-3 weeks |
| Accelerated Aging 25 °C - 75 °C | Depends on testing requirements | 1 week after study ends |