Micromolar fluoride contamination arising from glass NMR tubes and a simple solution for biomolecular applications
Micromolar fluoride contamination arising from glass NMR tubes and a simple solution for biomolecular applications
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玻璃核磁共振管产生的微摩尔氟化物污染以及生物分子应用的简单解决方案
DOI:
10.1101/2024.02.12.579991
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发表时间:
2024
期刊:
影响因子:
--
通讯作者:
Matwani K
中科院分区:
文献类型:
--
作者:
Matwani K
Fluorine (19F) NMR is emerging as an invaluable analytical technique in chemistry, biochemistry, structural biology, material science, drug discovery, and medicine, especially due to the inherent rarity of naturally occurring fluorine in biological, organic, and inorganic compounds. Here, we revisit the under-reported problem of fluoride leaching from new and unused glass NMR tubes. We characterised the leaching of free fluoride from various types of new and unused glass NMR tubes over the course of several hours and quantify this contaminant to be at micromolar concentrations for typical NMR sample volumes across multiple glass types and brands. We find that this artefact is undetectable for samples prepared in quartz NMR tubes within the timeframes of our experiments. We also observed that pre-soaking new glass NMR tubes combined with rinsing removes this contamination below micromolar levels. Given the increasing popularity of19F NMR across a wide range of fields, increasing popularity of single-use screening tubes, the long collection times required for relaxation studies and samples of low concentrations, and the importance of avoiding contamination in all NMR experiments, we anticipate that our simple solution will be useful to biomolecular NMR spectroscopists.
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DOI:
10.1021/acs.joc.8b00104
发表时间:
2018-03-16
期刊:
The Journal of organic chemistry
影响因子:
--
作者:
Saunders C;Khaled MB;Weaver JD 3rd;Tantillo DJ
通讯作者:
Tantillo DJ
DOI:
--
发表时间:
2019
期刊:
Fundamentals of Inorganic Glasses
影响因子:
--
作者:
A. Varshneya;J. Mauro
通讯作者:
J. Mauro
DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
J. Begué;D. Bonnet
通讯作者:
D. Bonnet
影响因子:
2.9
作者:
M. Brauer;B. Sykes
通讯作者:
B. Sykes
影响因子:
2.7
作者:
Lu, Manman;Ishima, Rieko;Gronenborn, Angela M.
通讯作者:
Gronenborn, Angela M.