ESEEM measurements with time-resolved detection of the entire ESE signal shape

被引：6

作者：

Astashkin, AV ^{[1
]}

Kozlyuk, VV ^{[1
]}

Raitsimring, AM ^{[1
]}

机构：

[1] Univ Arizona, Dept Chem, Tucson, AZ 85721 USA

来源：

JOURNAL OF MAGNETIC RESONANCE | 2000年 / 145卷 / 02期

关键词：

ESE; ESEEM; SECSY; data acquisition; signal-to-noise ratio;

D O I：

10.1006/jmre.2000.2100

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

In this work we discuss the extension of electron spin-echo envelope modulation (ESEEM) measurements to the additional time dimension, the spin-echo coordinate. The time-resolved acquisition of the entire spin-echo signal shape retains information on the dependence of the ESEEM amplitude on the position within the ESE signal. Therefore, not only can such acquisition be completely substituted for the boxcar integration in ESEEM measurements, but it can also improve the performance of the ESEEM experiments in terms of obtaining correct modulation amplitudes and a better signal/noise ratio. Implementing such an acquisition in pulse-adjustable ESEEM measurements transforms these techniques into routine and convenient experiments used to increase the modulation amplitude. (C) 2000 Academic Press.

引用

页码：357 / 363

页数：7

共 17 条

[1] Refocused primary echo: A zero dead time detection of the electron spin echo envelope modulation [J].