GB/T 45548-2025 Active National standards

GB/T 45548-2025 Determination of isotope abundance of deuterated reagents—Nuclear magnetic resonance spectroscopy

Publish Date: 2025-04-25 Implement Date: 2025-04-25 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 45548-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic disciplines

ICS Name: Biology, botany, and zoology

Publish Date: 2025-04-25

Implement Date: 2025-04-25

Pages: 24 pages

Scope

This document describes the method of determining the isotopic abundance of deuterium-labeled reagents using nuclear magnetic resonance spectrometers.
This document is applicable to the determination of isotopic abundance for 21 deuterium-labeled reagents (with a purity of ≥ 98%), including chloroform-D, dichloromethane-D2, chlorobenzene-D5, iodobenzene-D5, bromobenzene-D5, acetone-D6, benzene-D6, toluene-D8, methanol-D4, ethanol-D6, heavy water, dimethyl sulfoxide-D6, tetrahydrofuran-D8, methyl p-toluenesulfonate-D3, atropine-D9, phthalic acid di(2-butoxyethyl) ester-D4, methyl p-hydroxybenzoate-isomer-D3, iso-vanillin-D3, phthalic acid dimethyl ester-D4, ethanol-D, and acetic acid-D. The determination of isotopic abundance for other deuterium-labeled reagents can be referenced in this document.