Semi-quantitative method for high molecular weight neuropeptides by high-performance liquid chromatography/thermospray mass spectrometry.

Semi-quantitative method for high molecular weight neuropeptides by high-performance liquid chromatography/thermospray mass spectrometry.
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高效液相色谱/热喷雾质谱法半定量高分子量神经肽。

DOI:
10.1002/bms.1200181009
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发表时间:
1989
期刊:
Biomedical & environmental mass spectrometry
影响因子:
--
通讯作者:
Pack,TW
Pack,TW
中科院分区:
--
文献类型:
--
作者:
Voyksner,RD;Pack,TW

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High‐performance liquid chromatography/thermospray mass spectrometry (HPLC/MS) was evaluated and optimized for the determination of β‐ and γ‐endorphin. Thermospray spectra for the endorphins could be acquired under ion evaporation conditions, when a low vaporizor temperature (94°C) and high source temperature are used. The spectra showed [M + H]+, [M + Hx−1+ Nax]+(x= 1–3) together with double charged ions. Positive ion detection exhibited higher ion currents than negative ion detection. Thermospray HPLC/MS was used to generate a linear calibration curve from 10 to 300 pmol. Thermospray displayed good run‐to‐run reproducibility (2–7%) and accurately measured spiked quantities of β‐ and γ‐endorphin within 15% of the spiked values.
通过酶热喷雾液相色谱/质谱法进行快速蛋白质测序
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