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what is the standard substance?


Titrant solution has to be standardized - that is, we have to determine its exact concentration. This can be achieved either by dissolving known mass of the substance in known volume of solution, or by titrating sample of a substance of known mass. However, for the standardization procedure to yield precise results weighed substance must meet several criteria. Substances that meet these critera are called standard substances.
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Roles of Genipin

Genipin is a chemical compound found in gardenia fruit extract. It is an aglycone derived from an iridoid glycoside called geniposide present in fruit of Gardenia jasminoides.
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Ametryn is an insecticide

Ametryn is an unrestricted or General Use Pesticide (GUP). In Florida and Texas, ametryn may be applied alone on grapefruit and orange trees. In Florida, it may be applied with simazine for common bermuda grass and annual grasses and broadleaf weeds. In Hawaii, a mixture with diuron may be used on sugarcane .
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Geniposidic acid on the protection of endothelial cells

Geniposidic acid is a natural chemical compound, classified as an iridoid glucoside, found in a variety of plants including Eucommia ulmoides and Gardenia jasminoides.
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Introduction of Arachidonic acid

Formula: C20H32O2
Molecular weight: 304.4669
IUPAC Standard InChI: 
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Introduction of Arachidonic acid

Arachidonic acid is a kind of omega-6 polyunsaturated fatty acid that can be naturally found in some foods or synthesized. Some of this kind of element is necessary for nutrition in the body, but too much can be extremely harmful.
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What are the standard substance?Where is (RM)reference material company and price?

What are the standard substance?Where is (RM)reference material company and price?We guaranty the highest quality of our products.Standard material for chemical analysis, instrumental analysis for com

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