电喷雾核苷酸离子非共价加合物的红外光解。
Infrared photodissociation of non-covalent adducts of electrosprayed nucleotide ions.
机构信息
Baker Chemistry Laboratory, Cornell University, Ithaca, New York, USA.
出版信息
J Am Soc Mass Spectrom. 1996 Feb;7(2):209-10. doi: 10.1016/1044-0305(95)00680-X.
PMID:24203244
Abstract
Efficient dissociation of gaseous non-covalent adducts of multiply charged DNA anions can be effected by infrared irradiation to yield minimal dissociation of the DNA molecular ions-far less dissociation than by collisional activation. Examples include removal of adducted impurities from 100-mer DNA anions and removal of all 14 adducted molecules of 1,4-diaminobutane from M(15-) to M(17-) of a 50-mer DNA.
摘要
高效地解离多电荷 DNA 负离子的气相非共价加合物，可以通过红外辐射来实现，从而使 DNA 分子离子的解离最小化——比碰撞激活的解离少得多。实例包括从 100 -mer DNA 负离子中去除加合杂质，以及从 50-mer DNA 的 M(15-) 到 M(17-) 中去除 1,4-二氨基丁烷的所有 14 个加合分子。
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