Warwick Analytical Service is offering limit testing for heavy metal impurities.
The limit test for heavy metals is a qualitative test that demonstrates that the content of metallic impurities in organic samples does not exceed the limit specified in the Pharmacopeia standards.
Metals that respond well to the limit test are lead, mercury, bismuth, arsenic, tin, antimony, cadmium, silver, copper and molybdenum.
The heavy metals limit test offers an inexpensive alternative to the ICP/MS Pharmacopeia method USP 730, Warwick Analytical Service said.
Operating in an ISO 17025 and GMP-accredited environment, Warwick Analytical Service follows strict operating procedures whereby sample solutions are analysed against a three-point calibration (10, 20 and 30ppm) of lead standard solution prepared the same day.
A colour-matching process is then used to distinguish whether the sample under the test conditions passes or fails the heavy metals limit test.
