中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共4条，第1-4条

帮助

条数/页：排序方式：
	In situ calibration of Direct Analysis in Real Time-mass spectrometry for direct quantification: Urine excretion rate index creatinine as an example 期刊论文 OAI收割 TALANTA, 2019, 卷号: 201, 页码: 134-142 作者: Zhang, Ning; Lu, Meiling; Duan, Xiaokun; Liu, Charles C.; Wang, Hailin \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2020/09/10 Direct analysis in real time Direct quantification Urinary creatinine Stable isotope-labeled creatinine
	Solid-phase extraction with the metal-organic framework MIL-101(Cr) combined with direct analysis in real time mass spectrometry for the fast analysis of triazine herbicides 期刊论文 OAI收割 JOURNAL OF SEPARATION SCIENCE, 2014, 卷号: 37, 期号: 12, 页码: 1489-1495 作者: Li, Xianjiang; Xing, Jiawei; Chang, Cuilan; Wang, Xin; Bai, Yu \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2019/04/09 Direct Analysis In Real Time Mass Spectrometry Fast Analysis Metal-organic Frameworks Solid-phase Extraction Triazine Herbicides
	Direct analysis in real time mass spectrometry combined with single-drop liquid-liquid-liquid microextraction for the rapid analysis of multiple phytohormones in fruit juice 期刊论文 OAI收割 ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2012, 卷号: 403, 期号: 8, 页码: 2307-2314 作者: Bai, Yu; Zhang, Jialing; Bai, Yu; Liu, Huwei \| 收藏 \| 浏览/下载：23/0 \| 提交时间：2019/04/09 Direct Analysis In Real Time (Dart) Single Drop Liquid-liquid-liquid Microextraction Phytohormone Fruit Juice Mass Spectrometry
	Automatic spin coater for concave spherical substrate (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China Fengchao L.; Jingsong G.; Xiaoguo F.; Jingli Z.; Zhijun X.; Jun H.; Fenglin X.; Huiqing W.; Xiaohan L. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Coating photoresist film with uniform thickness on concave spherical substrate (CSS) is very important for microfabrication of concave spherical optical elements by lithography technique via a laser direct writer for the uneven photoresist film will result in ununiformity of line width so as to influence the characters of optical elements. For improving the uniformity of photoresist film coating on CSS an automatic spin coater was designed. The process and the mathematical model of spin coating for CSS were analyzed. Difficulties for realizing the spin coater consist of the control of multi-axis motion precisely and collaboratively valves on/ff properly and real-timely. A flexible and well-behaved spinning motion system was achieved by tmeans of principal and subordinate CPUs control. The motion program for spin coating could be created and implemented automatically while the pressure and the valves were was watched and controlled in real time. Film coating and laser direct writing experiments on a CSS with aperture equals to 100 mm and radius equals to 370 mm were performed. Photoresist film with uniform thickness on CSS was obtained by selecting proper spin coating parameters such as rotational speed acceleration and viscosity of the photoresist. After development the section analysis by the atomic force microscope showed that photoresist film thickness was about 517 nm in the center and about 520 nm in the edge of substrate the film thickness error was within 1% and the line width was about 6.0 m with steep sides parallel each other. Experimental results indicate that uniform thickness of thin photoresist film has been coated on CSS by the spin coater which contributes to quality improvement of laser direct writing lines on CSS.