Some bisphenol A-free plastic cups may contain other chemicals that have similar properties to BPA. New research from the Oakland, Calif.-based Center for Environmental Health has found that the replacement chemicals also may disrupt the body's naturally produced hormones. That means exposure to th...
The Beckman DU Spectrophotometer would be a replacement for previously developed spectrophotometers that were unable to properly absorb ultraviolet light. Beckman began with the invention of the Model A, which used a glass prism to absorb UV light. It was discovered that this did not produce good...
,“it turns out that many of the compounds used to make plastic soft and flexible (like phthalates) or to make them harder and stronger (like bisphenol a, or bpa) are consummate endocrine disruptors.” men with excess phthalates in their bodies, for instance, will produce less testosterone ...