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Home > Analytical Chemistry > Standard (Find 165 items)

Analytical Chemistry

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Standard

2,4-Dibromophenol

(615-58-7)
Used as an intermediate in organic synthesis.

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2,4,6-Tris(2′-pyridyl)-1,3,5-triazine

(3682-35-7)
Photometric determination of iron Fe(II) and total iron. The color of Fe2+ complex is reddish purple at pH 3.4-5.8 (1:2, logK=20.4), and TPTZ can be used as a metal indicator for Fe. However, TPTZ and Co, Cu, Ni and other metal ions will also develop color, so it can not be used as a selective colorimetric reagent for Fe. If there are a large amount of Co, Cu, Ni ions, it will hinder the detection. In addition to the Fe ions in serum and boiler water, it has also been reported that Fe can be qua

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2-Piperidinemethanamine

(22990-77-8)
2-Piperidinemethanamine is used in the synthesis of compounds exhibiting anti-osteoclast and anti-osteoblast activity. It also is used in the synthesis of potent antibacterial.

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2-Monostearin

(621-61-4)
A biomarker of metabolic responses to hepatotoxicants and carcinogens.

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2,9-DIMETHYL-1,10-PHENANTHROLINE HEMIHYDRATE

(34302-69-7)
White to cream cryst powder

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2,4,5-Trimethylaniline

(137-17-7)
Manufacture of dyes, organic synthesis.

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2-Butyl-2-ethyl-1,3-propanediol

(115-84-4)
Synthesis of lubricants, emulsifying agents, insect repellents, plastics.

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2-(4-Biphenylyl)-5-phenyl-1,3,4-oxadiazole

(852-38-0)
Suitable as laser dye

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2,4′-Dinitrodiphenylamine

(612-36-2)

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2H-Indol-2-one, 5-[2-[4-(1,2-benzisothiazol-3-yl)-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-, methanesulfonate, hydrate (1:1:3)

(199191-69-0)

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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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