[go: up one dir, main page]

Melnick et al., 1941 - Google Patents

Chemical determination of nicotinic acid content of flour and bread

Melnick et al., 1941

Document ID
4876435188868323449
Author
Melnick D
Oser B
Siegel L
Publication year
Publication venue
Industrial & Engineering Chemistry Analytical Edition

External Links

Snippet

THAT the new synthetic vitamins would ultimately be used on a major scale for the nutritional enhancement of some of our more refined foods was almost a foregone conclusion. Much emphasis has been directedtoward the nutritional improvement of white …
Continue reading at pubs.acs.org (other versions)

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/84—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving inorganic compounds or pH
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/52—Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper and including single- and multilayer analytical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
    • G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/72—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving blood pigments, e.g. haemoglobin, bilirubin or other porphyrins; involving occult blood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
    • G01N2333/90—Enzymes; Proenzymes
    • G01N2333/914—Hydrolases (3)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

Similar Documents

Publication Publication Date Title
CN105021601A (en) Food sulfur dioxide content determination method
Melnick et al. Chemical determination of nicotinic acid content of flour and bread
US2999052A (en) Composition for colorimetric test for serum enzymes
CN112285367A (en) Kit for detecting calcium ions and application thereof
Sherman et al. Studies on Amylases. I. An Examination of Methods for the Determination of Diastatic Power.
Lehnus et al. Automated procedure for kinetic measurement of total triglycerides (as glycerol) in serum with the Gilford System 3500.
Rosalki A simple colorimetric method for the determination of serum alpha-hydroxybutyric dehydrogenase activity
Morrell Rapid Determination of Reducing Sugars: Extension of Forsee's Photocolorimetric Ferricyanide Method
Rubin et al. Determination of riboflavin in low-potency foods and feeds
CN106323964B (en) A method of passing through the heatproof anti-adversity of the practical granulation evaluation phytase of feed
Rehak et al. Calorimetric enzymic measurement of uric acid in serum.
Ziegenhorn et al. Kinetic enzymatic method for automated determination of glucose in blood and serum
CN107576655A (en) The prefabricated reagent of hydroxymethylfurfural quick detection and its preservation, detection method in a kind of honey
Wadman et al. Quantitative method using paper chromatography for estimation of reducing oligosaccharides
GB2185315A (en) Improvements in or relating to the chemical analysis of tabacco or smoking-related products
DE68918517T2 (en) Determination of the ammonia level in the blood.
Hayden A rapid photometric procedure for the determination of thiamine with 6-aminothymol
Claycomb et al. A simple, rapid method for quantitative determination of salivary amylase
Burns et al. Development and evaluation of rapid tests for the estimation of phosphate and potassium in plant sap
Weeks et al. Determining Magnesium in Plants and Soils-Adaptation of the 8-Hydroxyquinolate Micromethod
Klatzkin et al. The chemical estimation of nicotinic acid, using p-aminopropiophenone
Skaltsa et al. Kinetic potentiometric determination of peroxidase in plants, using fluoride-selective electrode
Napier et al. Emergency Determination of Plasma Urea
JPH02276597A (en) Method for measuring calcium in human body
Rand The Role of Spectrophotometric Standards in the Clinical Chemistry Laboratory