The extract condition, extent of sample application, precision and accuracy of the TLC- UV method for chlorogenic acid in green tea were studied.

对绿茶中的绿原酸的提取条件、点样量及方法的精密度、准确度等进行了考察。

youdao

The extracted phenols were detected by gradient eluted mobile phase and UV wavelength programming HPLC. The precision, accuracy and detection limits of established methods were determined.

采用流动相梯度淋洗，紫外检测器波长编程的方法测定富集后的酚类化合物，并测定了方法的精密度、准确度和检测限。

youdao

Therefore, such factors having effect on the precision of deep UV lithography as diffraction effect, exposure dosage, wavelength and distribution of fly's eyes lens etc.

同时由于紫外光的衍射效应，获得高精度的大高宽比结构并不容易。本文深入研究了影响紫外深度光刻图形转移精度的如下因素；

youdao

If this (topdown) manufacturing process is to be based on the most modern forms of deposition (including epitaxy), e-beam or ultra-deep UV lithography and precision etching, the mainstay of microelectronics and optoelectronics fabrication, then there are strict limits described below for which one-off fabrication is possible, but manufacture is not.

FORBES: Are There Physical Limits to Nanotechnology?