中国科学院机构知识库网格系统: 检索

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	Surface Engineering of Carbon Fiber Paper toward Exceptionally High-Performance and Stable Electrochemical Nitrite Sensing 期刊论文 OAI收割 ACS SENSORS, 2019, 卷号: 4, 期号: 11 作者: Zhu, Wenxin; Zhang, Yi; Gong, Jiandong; Ma, Yiyue; Sun, Jing \| 收藏 \| 浏览/下载：14/0 \| 提交时间：2020/11/25 carbon fiber paper surface engineering electrochemical sensor nitrite food sample
	Biomass reinforced graphene oxide solid/liquid phase membrane extraction for the measurement of Pb(II) in food samples 期刊论文 OAI收割 FOOD CHEMISTRY, 2018, 卷号: 269, 页码: 9-15 作者: Wang, Jianlong; Suo, Yourui; Hu, Na; Li, Zhonghong; Yue, Tianli \| 收藏 \| 浏览/下载：233/0 \| 提交时间：2018/12/05 Biomass Graphene Oxide Membrane Solid/liquid Phase Extraction Pb(Ii) Food Sample
	Determination of thiols by gas purge microsyringe extraction coupled with chemical derivatization by high performance liquid chromatography-fluorescence detection with mass spectrometry identification 期刊论文 OAI收割 JOURNAL OF LIQUID CHROMATOGRAPHY & RELATED TECHNOLOGIES, 2018, 卷号: 41, 期号: 12 作者: Zhuang, Jianlin; You, Jinmao \| 收藏 \| 浏览/下载：14/0 \| 提交时间：2019/11/26 Derivatization food sample GP-MSE HPLC-MS PIPD thiols
	Development of a new diffuse near infrared food measuring (EI CONFERENCE) 会议论文 OAI收割 Sitxh International Symposium on Instrumentation and Control Technology: Signal Analysis, Measurement Theory, Photo-Electronic Technology, and Artificial Intelligence, October 13, 2006 - October 15, 2006, Beijing, China 作者: Zhang J.; Zhang J.; Zhang J. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 Industries from agriculture to petrochemistry have found near infrared (NIR) spectroscopic analysis useful for quality control and quantitative analysis of materials and products. The general chemical polymer chemistry petrochemistry agriculture food and textile industries are currently using NIR spectroscopic methods for analysis. In this study we developed a new sort NIR instrument for food measuring. The instrument consists of a light source 12 filters to the prismatic part. The special part is that we use a mirror to get two beams of light. And two PbS detectors were used. One detector collected the radiation of one light beam directly and the value was set as the standard instead the standard white surface. Another light beam irradiate the sample surface and the diffuse light was collected by another detector. The value of the two detectors was compared and the absorbency was computed. We tested the performance of the NIR instrument in determining the protein and fat content of milk powder. The calibration showed the accuracy of the instrument in practice.