- masking reagent
- 掩蔽剂
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
English-Chinese chemistry dictionary (英汉化学大词典). 2013.
Masking — can mean: Applying or using a mask Auditory masking, a class of sensory phenomena where the perception of one sound is affected by the presence of another sound Temporal masking Simultaneous masking Backmasking, a recording technique in which a… … Wikipedia
Masking agent — A masking agent is a reagent used in chemical analysis which reacts with chemical species that may interfere in the analysis. In sports a masking agent is used to hide or prevent detection of a banned substance or illegal drug like anabolic… … Wikipedia
Industrial etching — For other uses, see Etching (disambiguation). Etched in ferric chloride for PCB production at home In industry, etching, also known as chemical milling, is the process of using acids, bases or other chemicals to dissolve unwanted materials such… … Wikipedia
test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… … Medical dictionary
Titration — [ frame|Titration setup: the titrant drops from the burette into the analyte solution in the flask. An indicator present then changes color permanently at the endpoint.] Titration is a common laboratory method of quantitative chemical analysis… … Wikipedia
sample preparation — ▪ chemistry Introduction in analytical chemistry (chemistry), the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special … Universalium
Liquid-liquid extraction — Liquid liquid extraction, also known as solvent extraction and partitioning, is a method to separate compounds based on their relative solubilities in two different immiscible liquids, usually water and an organic solvent. It is an of a substance … Wikipedia
Atomic emission spectroscopy — (AES) is a method of chemical analysis that uses the intensity of light emitted from a flame, plasma, arc, or spark at a particular wavelength to determine the quantity of an element in a sample. The wavelength of the atomic spectral line gives… … Wikipedia