What reagent grades, purity labels and specifications mean: ACS/AR, HPLC, electronic grade and tag-grade proteins, in 190+ guides from Aladdin Scientific.
Pathology links basic biology with clinical medicine and is a core technical platform for diagnosis, drug development, and studies of tissue function. From tissue sectioning and H&E staining to IHC, ISH/FISH, and digital pathology, the purity, stability, and formulation optimization of reagents ...
“For amino acid analysis” (often abbreviated AAA) is an application-specific grade used by reagent manufacturers to indicate the product is suitable for quantitative amino acid workflows—classically protein hydrolysis followed by separation/detection on an amino acid analyzer or ...
“For Preparation” denotes a supplier-defined quality tier intended for routine preparative chemistry (organic or inorganic) where ultra-trace impurity control is not critical to the outcome. There’s no single external standard for “for preparation”—manufacturers set the specs and QC ...
Enzyme-linked immunosorbent assay (ELISA) is a highly sensitive quantitative detection method based on the specific reaction between antigen and antibody, and is widely used in immunology, molecular biology, drug development, and clinical diagnosis. Because the detection signal of this technique ...
Nucleic acid electrophoresis is one of the most commonly used separation and detection methods in molecular biology experiments.
“Electrochemical grade” refers to reagents—most commonly solvents and supporting electrolytes—manufactured and qualified to minimize electroactive impurities (moisture, protic/oxidizable/reducible species, trace metals, halides, peroxides) that distort electrochemical measurements or ...
FCC grade indicates a material meets the compendial specifications in the Food Chemicals Codex (FCC)—a collection of internationally recognized standards for the identity, purity, and quality of food ingredients. The FCC is maintained and published by the U.S. Pharmacopeia (USP). In August ...
Hydrophilicity / hydrophilic: tendency to be solvated by water and interact with polar groups/solvents.
Nucleic acid hybridization technology is an important molecular tool for studying gene structure, expression, and distribution, in which Northern blotting is used for RNA analysis and Southern blotting is used for DNA detection. The core of these two methods lies in the integrity of nucleic ...