KAR Laboratories Offers EDTA
Testing Capability For Water, Groundwater, and Soil
acid) is an important compound of massive use worldwide in paper processing,
food, drinks, and many other applications. Belonging to a class
of chemicals known as chelating agents, EDTA is sold in industrial grade,
pharmaceutical grade, and food grade types. Food grade EDTA is
used as a supplement when added to food and is approved by the American
Heart Association as a method for removing heavy metals from the body.
Environmentally, EDTA is not readily decomposed
in the environment. Additionally, the very property that makes
EDTA commercially valuable - its ability to bind with metals - also
causes it to dramatically enhance the mobilization of heavy metals into water
What we are seeing at our laboratory is that land application of waste
that contains EDTA can expedite the migration of toxic heavy metal contaminants
into the groundwater aquifer at an alarming rate.
If your operation currently uses EDTA
or has in the past, you should take a careful look at the ultimate fate
of your waste. Testing your water, wastewater, or waste stream
for EDTA could be critical in predicting the fate of toxic heavy metal
At our client's request, KAR now offers the
chemical analysis of EDTA in water samples using our proprietary
test method KO-EDTA. The water sample is
collected in a 250 mL amber glass bottle, preserved with 10 mL of a
37% formaldehyde solution, and refrigerated until analysis. Analysis
on the preserved sample must be performed within 14 days of collection.
The analysis consists of a micro-extraction followed by High Performance
Liquid Chromatography (HPLC). The lower reporting limit is 50
ug/L. Cost for this test is $120/sample which includes the sample
container with the formaldehyde preservative. Please contact one
of our project managers for more details or to order bottles.