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Home > Analytical Chemistry > Standard (Find 1884 items)

Analytical Chemistry

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Elementary Substance

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Standard

Tetryl

(479-45-8)
As indicator, 0.1 g in 60 ml alcohol with water to make 100 ml.pH:10.8 colorless, 13.0 reddish-brown.One to five drops of solution required for 10 ml liquid.Salt error said to be small.Also used in explosives.

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2-[4-[4-[4-(Hydroxydiphenylmethyl)-1-piperidinyl]-1-oxobutyl]phenyl]-2,2-dimethylacetic acid

(76811-98-8)
The oxo analogue of Fexofenadine (F322470); H1-histamine receptor antagonist and an active metabolite of Terfenadine (T114500).

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(±)-Coumachlor

(81-82-3)
Rodenticide.

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Novaluron

(116714-46-6)
Insecticide.

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Ferene disodium salt

(79551-14-7)
Ferene is a chromogenic agent used in the colorimetric determination of iron.

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Bis(4-hydroxyphenyl)diphenylmethane

(1844-01-5)

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2,3,4-Trichlorophenol

(15950-66-0)
Needles (from benzene and ligroin) or light peach solid.

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Lard, oil

(8016-28-2)

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Polyglyceryl-3 diisostearate

(66082-42-6)

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Theaflavin digallate

(33377-72-9)

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In the analysis work, it is often necessary to use a compound of good quality and accurate content, which is used as a comparison for detection control, or used to calibrate the instrument. This compound is called a standard. Or standard. The standard product refers to the standard substance used to determine the potency of biological products. The production department must provide the standard product expressed in units (μ) of its potency when it is approved as a quality standard for biological products. According to the application, the standard products for inspection can be divided into biological standard products for biological verification of biological products, endocrine drugs, antibiotics and so on.

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