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Temperature control is essential in certain fields of molecular biology. For example, there are protocols in which samples must be held at specific temperatures for defined time periods. Inadequate temperature control can yield results of different enzyme activities, alter structures of nucleic acids, yield sub-par results of reactions, and result in non-reproducible results. One of ... Read more

Environmental analysis enables laboratories to assess the quality of water, air, soil, and other environmental samples. Quality assurance for environmental analysis is anchored on established protocols, adequately representative samples, and optimum environmental and instrumental conditions. Environmental Laboratory Equipment is designed to facilitate all the procedures from sample preparation through separation, heating, and incubation to measurement ... Read more

Clear microscope images depend on more than objective magnification. In routine biological observation, illumination angle, condenser alignment, and aperture adjustment all influence image contrast, resolution, and depth of field. In many Laboratory Microscopes, these functions are managed through an NA 1.25 Abbe condenser with an integrated iris diaphragm. This optical system, when properly adjusted, demonstrates ... Read more

Laboratory centrifugal separation techniques can be applied to both the biological and chemical sciences. As in these other techniques, reliable separation is critical, and it all begins with the laboratory centrifuge. If the speeds of rotation are not controlled, the separation results will be inconsistent at best and unreliable at worst. Pelleting will not be ... Read more

Accurate diagnosis of infectious diseases depends on one often-overlooked step: how the clinical specimen is collected, transported, and preserved. For fastidious or fragile pathogens – bacteria that die quickly outside the human body – using a standard dry swab can lead to false-negative results. This is where Swabs with Amies become indispensable. Amies transport medium ... Read more

The collection of a clinical sample is only the beginning. A dry swab is essentially a death sentence for the collected sample. Swabs with medium, or transport media swabs, are an essential tool found in nearly all diagnostic and research labs. Because there are a number of different formulations, how does one select the appropriate ... Read more