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Analytical Chemistry

Standard

α-D-Galactopyranose

(3646-73-9)
α-D-Galactose is the alpha anomer of D-Galactose (G155250), the C-4 epimer of Glucose (G595000). D-Galactose is found in milk and sugar beets as well as being synthesized by the body.

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Nicotyrine

(487-19-4)
Nicotryrine is an alkaloid derived from the dehydrogenation of nicotine and its analog, nornicotine. An alkaloid occurring in cigaret smoke.

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Picene

(213-46-7)
ChEBI: An ortho-fused polycyclic arene consisting of five fused benzene rings. It is obtained during the distillation of petroleum.

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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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