Abstract
Formaldehyde is a widely used aldehyde in biomedical applications, including tissue fixation. It is this same fixative property that can result in toxicity if aldehydes are improperly discarded. A proper neutralization of aldehyde waste products can address this, thereby reducing both health and environmental toxicity concerns. In this study two commercially available products designed to neutralize formaldehyde were evaluated, including neutralization of laboratory derived tissue fixative waste. The primary selection criteria for inclusion in the study were: their ease of use (based on product instructions); the two products assert high levels of formaldehyde neutralization (below 20 ppm) relative to other neutralizing products and their lack of generation of polymeric residues that can clog drains. Both products tested were relatively easy to use and both achieved <10 ppm residual levels of formaldehyde from standard formalin and glutaraldehyde preparations used in research and clinical laboratories.
Highlights
are tissue fixatives broadly used in the biomedical sciences
with corresponding restrictions imposed on their use and disposal
Neutralex were found suitable for the effective neutralization of 10% formalin
Summary
The purpose of this study was to evaluate two such commercial products to determine their effectiveness in neutralizing aldehydes used extensively in tissue fixation and sterilization
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