- sample concentration method
- 试样浓缩法
Medical Chinese dictionary (湘雅医学词典). 2013.
Medical Chinese dictionary (湘雅医学词典). 2013.
potassium hydroxide concentration method — (for oocysts of Cyclospora in a stool sample): a fecal suspension is mixed with potassium hydroxide and saline, filtered, and centrifuged; the sediment is then examined on a slide … Medical dictionary
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
method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a … Medical dictionary
Dumas method — For the method to determine the molecular weight of an unknown compound, see Dumas method of molecular weight determination. The Dumas method in analytical chemistry is a method for the quantitative determination of nitrogen in chemical… … Wikipedia
Van der Pauw method — The van der Pauw Method is a commonly used technique to measure the sheet resistance of a material. The Van der Pauw method is often used to measure the Hall effect, which characterises a sample of semiconductor material and can be successfully… … Wikipedia
Colorimetry (chemical method) — This article is about a chemical measurement method. For more general color measurement, see Colorimetry. Not to be confused with Calorimetry. A Duboscq colorimeter, 1870, which allowed visual comparison of the absorptions in two columns of… … Wikipedia
Montessori method — The Montessori method is an educational method for children, based on theories of child development originated by Italian educator Maria Montessori (1870 1952) in the late 19th and early 20th centuries. It is applied primarily in preschool and… … Wikipedia
Total organic carbon — (TOC) is the amount of carbon bound in an organic compound and is often used as a non specific indicator of water quality or cleanliness of pharmaceutical manufacturing equipment. A typical analysis for TOC measures both the total carbon present… … Wikipedia
Nucleic acid quantitation — In molecular biology, quantitation of nucleic acids is commonly performed to determine the average concentrations of DNA or RNA present in a mixture, as well as their purity. Reactions that use nucleic acids often require particular amounts and… … Wikipedia
Column chromatography — A chemist in the 1950s using column chromatography. The Erlenmeyer receptacles are on the floor. Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds. It is often used for… … Wikipedia
Ultraviolet–visible spectroscopy — Beckman DU640 UV/Vis spectrophotometer. Ultraviolet visible spectroscopy or ultraviolet visible spectrophotometry (UV Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet visible spectral region. This… … Wikipedia