Results 1 to 10 of about 887,132 (304)

Rapid quantification and validation of etomidate and dexmedetomidine blood concentrations in rats using a novel portable mass spectrometer [PDF]

Frontiers in Veterinary Science
In clinical anesthesia, precise dosing depends on feedback from blood drug concentrations. However, rapid tools for measuring these concentrations are currently limited.
Sicheng Liu, Sicheng Liu, Xiaoxiao Li, Xiaoxiao Li, Deying Gong, Yanhua Huang, Wensheng Zhang, Wensheng Zhang   +7 more
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Rapid quantification and PK-PD modeling of rocuronium bromide in beagles using portable mass spectrometer [PDF]

Frontiers in Veterinary Science
Monitoring rocuronium bromide (Rocur) concentrations is crucial for assessing muscle relaxation in clinical anesthesia. However, no suitable instruments are currently available. This study explores the application of a portable mass spectrometer (MS) for
Xiaoxiao Li, Xiaoxiao Li, Pan Chang, Pan Chang, Xing Liu, Xing Liu, Deying Gong, Deying Gong, Wensheng Zhang, Wensheng Zhang   +9 more
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online quantitative analysis, online process mass spectrometer, quadrupole mass spectrometer [PDF]

Zhipu Xuebao, 2023
As of October 2022, the United Nations Office on Drugs and Crime (UNODC) Early Warning Advisory (EWA) has monitored over 1 150 new psychoactive substances (NPS) that had appeared in 137 countries and territories, including 76 substances that were ...
LIU Cui-mei1, HUA Zhen-dong1, HUANG Yu2, HU Wen2, ZHAO Xia3, JIA Wei1   +5 more
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Gas Quantitative Analysis Method of Online Process Mass Spectrometry Based on Separation of Overlapping Spectral Peaks [PDF]

Zhipu Xuebao, 2023
Online quantitative analysis of the reaction gas or tail gas of industrial production process can help to adjust the production process and improve product quality in time, which is of great significance to the transformation and upgrading of the ...
WEI Fu-qiang1, HUANG Zhe-jian2, JIANG You2, DAI Xin-hua2, FANG Xiang2, JIN Shang-zhong1   +5 more
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Increase of the particle hit rate in a laser single-particle mass spectrometer by pulse delayed extraction technology [PDF]

Atmospheric Measurement Techniques, 2020
A single-particle mass spectrometer (SPMS) can provide a wealth of valuable information on chemical and physical parameters of individual particles in real time.
Y. Chen, Y. Chen, V. Kozlovskiy, X. Du, X. Du, J. Lv, S. Nikiforov, J. Yu, J. Yu, A. Kolosov, W. Gao, W. Gao, Z. Zhou, Z. Zhou, Z. Huang, Z. Huang, L. Li, L. Li   +17 more
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Distinct diurnal variation in organic aerosol hygroscopicity and its relationship with oxygenated organic aerosol [PDF]

Atmospheric Chemistry and Physics, 2020
The hygroscopicity of organic aerosol (OA) is important for investigation of its climatic and environmental impacts. However, the hygroscopicity parameter κOA remains poorly characterized, especially in the relatively polluted environment on the North ...
Y. Kuang, Y. He, W. Xu, P. Zhao, Y. Cheng, G. Zhao, J. Tao, N. Ma, H. Su, Y. Zhang, J. Sun, P. Cheng, W. Yang, S. Zhang, C. Wu, Y. Sun, C. Zhao   +16 more
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Enhanced CO2 Adsorption and Selectivity of CO2/N2 on Amine@ZIF-8 Materials

Adsorption Science & Technology, 2022
The ZIF-8 crystals were successfully postsynthetically modified using methylamine (MA), ethylenediamine (ED), and N, N′-dimethylethylenediamine (MMEN) to improve their adsorption performance toward CO2. Results showed that, compared with the original ZIF-
Zhijuan Zhang, Pengwei Li, Ting Zhao, Yuanhan Xia   +3 more
doaj   +1 more source

Mixing state of oxalic acid containing particles in the rural area of Pearl River Delta, China: implications for the formation mechanism of oxalic acid [PDF]

Atmospheric Chemistry and Physics, 2017
The formation of oxalic acid and its mixing state in atmospheric particulate matter (PM) were studied using a single-particle aerosol mass spectrometer (SPAMS) in the summer and winter of 2014 in Heshan, a supersite in the rural area of the Pearl ...
C. Cheng, C. Cheng, M. Li, M. Li, C. K. Chan, H. Tong, C. Chen, D. Chen, D. Wu, D. Wu, L. Li, L. Li, C. Wu, C. Wu, P. Cheng, P. Cheng, W. Gao, W. Gao, Z. Huang, Z. Huang, X. Li, X. Li, Z. Zhang, Z. Zhang, Z. Fu, Y. Bi, Z. Zhou, Z. Zhou   +27 more
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The schistosomicidal activity of ethanolic extracts from branches, leaves, flowers and fruits of Handroanthus impetiginosus (Mart. ex DC.) Mattos (Bignoniaceae) plant and metabolic profile characterization by UPLC-ESI-QTOF analysis [PDF]

Brazilian Journal of Biology, 2023
Schistosomiasis, caused by Schistosoma mansoni Sambon, 1907, is a severe and widely distributed parasitic disease, affecting about 200 million people worldwide. The disease is recognized by elevated mortality rates, especially among those living in areas
D. L. Montagnini, A. Katchborian-Neto, M. P. M. Tahan, N. D. Oliveira, L. G. Magalhães, A. H. Januário, P. M. Pauletti, P. S. S. R. Cavallari, W. R Cunha, O. P. Araujo, M. G. Soares, M. S. Ferreira, J. V. Andrade, G. S. Miranda, M. F. C Santos, M. L. A. e Silva   +15 more
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Characteristics and mixing state of amine-containing particles at a rural site in the Pearl River Delta, China [PDF]

Atmospheric Chemistry and Physics, 2018
Particulate amines play an important role for the particle acidity and hygroscopicity and also contribute to secondary organic aerosol mass. We investigated the sources and mixing states of particulate amines using a single-particle aerosol mass ...
C. Cheng, C. Cheng, Z. Huang, C. K. Chan, Y. Chu, M. Li, M. Li, T. Zhang, Y. Ou, D. Chen, P. Cheng, P. Cheng, L. Li, L. Li, W. Gao, W. Gao, Z. Huang, Z. Huang, B. Huang, B. Huang, B. Huang, Z. Fu, Z. Zhou, Z. Zhou   +23 more
doaj   +1 more source