A fluoro versus a nitro derivative-a high-performance liquid chromatography study of two basic analytes with different reversed phases and silica phases as basis for the separation of a positron emission tomography radiotracer.
A fluoro versus a nitro derivative-a high-performance liquid chromatography study of two basic analytes with different reversed phases and silica phases as basis for the separation of a positron emission tomography radiotracer.
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氟与硝基衍生物 - 两种具有不同反相和二氧化硅相的基本分析物的高效液相色谱研究,作为正电子发射断层扫描放射性示踪剂分离的基础
DOI:
10.1016/j.chroma.2013.08.068
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Steinbach J
中科院分区:
文献类型:
--
作者:
Wenzel B;Günther R;Brust P;Steinbach J
To develop a basis for the separation of a18F-labeled PET radiotracer from its nitro precursor, we performed an analytical HPLC study using the unlabeled reference compound and the corresponding nitro precursor. Aim of the study was to find a separation in which the fluoro derivative elutes in front of the nitro precursor with appropriate separation parameters. Several RP phases as well as a bare silica column were investigated with ACN and MeOH as organic modifiers and aqueous NH4OAc because of the basic character of the analytes. Four types of separation were observed based on different interaction mechanisms. When ACN/20 mM NH4OAc aq. was used mainly cationic-exchange and hydrophobic interactions contributed to the retention. A reversal of elution order could be observed starting from 95% ACN and subsequent increasing of the water content. This phenomenon was observed for all RP phases and seems to be independent of the different spacers bound to the silica. By contrast, using MeOH/20 mM NH4OAc aq. the elution order depends on the phase material. Two columns with the potential to perform π–π interactions showed different separation behavior compared to the other RP phases.
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DOI:
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发表时间:
1993
期刊:
影响因子:
--
作者:
L. Ettre
通讯作者:
L. Ettre
DOI:
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发表时间:
1993
期刊:
影响因子:
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作者:
J. Paesen;P. Claeys;E. Roets;J. Hoogmartens
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DOI:
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发表时间:
2011
期刊:
影响因子:
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作者:
B. Wenzel;A. Hiller;S. Fischer;D. Sorger;W. Deuther;M. Scheunemann;P. Brust;O. Sabri;J. Steinbach
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J. Steinbach
影响因子:
4.1
作者:
U. Neue;K. Tran;Alberto Méndez;P. Carr
通讯作者:
P. Carr
DOI:
--
发表时间:
2006
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影响因子:
--
作者:
W. Kiridena;C. Dekay;W. W. Koziol;Z. Ali;H. Ahmed;C. Poole
通讯作者:
C. Poole