Method development for on-site monitoring of volatile organic compounds via portable TD-GC-MS: evaluation of the analytical performances of HAPSITE® ER instrumentation and thermal desorption sampling media [0.03%]
便携式热脱附气相色谱质谱仪(HAPSITE ER)于现场测定挥发性有机物方法开发及热脱附采样管的性能评估
Michael E Smith,Emily Westbrook,Angela L Stastny et al.
Michael E Smith et al.
Determining worker exposure to hazardous volatile organic compounds (VOCs) in air at levels exceeding the Permissible Exposure Limits and Recommended Exposure Limits established by the U.S. federal agencies of Occupational Safety and Health...
Rania Hussien,Sarah Ahmed,Hanem Awad et al.
Rania Hussien et al.
Background: 'Voodoo' is a new substance of abuse that recently spread among youth in Egypt. It has numerous potentially dangerous effects on humans. However, to date the composition of the main constituents of this compou...
Evaluation of portable XRF instrumentation for assessing potential environmental exposure to toxic elements [0.03%]
便携式XRF仪器评估：用于评估有毒元素引起潜在环境暴露的影响
Kathryn G McIntosh,Diana Guimarães,Matthew J Cusack et al.
Kathryn G McIntosh et al.
Portable instruments based on X-Ray Fluorescence Spectrometry (XRF) have the potential to assist in field-based studies provided the data produced are reliable. In this study, we evaluate the performance of two different types of XRF instru...
Optical molecular fluorescence determination of ultra-trace beryllium in occupational and environmental samples using highly alkaline conditions [0.03%]
高强度碱性条件下的光学分子荧光法测定职业和环境样品中的超痕量铍
Lori Adams,Anoop Agrawal,John P Cronin et al.
Lori Adams et al.
Exposures to beryllium (Be), even at extremely low levels, can cause severe health effects in a percentage of those exposed; consequently, occupational exposure limits (OELs) promulgated for this element are the lowest established for any e...
Determination of airborne wood dust in Button samples by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) [0.03%]
傅里叶变换衰减全反射红外光谱法测定木屑粉尘中的按钮样品
Cheol-Woong Kwon,Madalina M Chirila,Taekhee Lee et al.
Cheol-Woong Kwon et al.
Emerging concerns regarding the toxicity of inhaled wood dust support the need for techniques to quantitate wood content of mixed industrial dusts. The diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analysis technique ...
Arsenic(V) Removal in Wetland Filters Treating Drinking Water with Different Substrates and Plants [0.03%]
不同基质与植物湿地系统对饮用水中砷(V)的去除效果研究
Min Wu,Qingyun Li,Xianqiang Tang et al.
Min Wu et al.
Constructed wetlands are an attractive choice for removing arsenic (As) within water resources used for drinking water production. The role of substrate and vegetation in As removal processes is still poorly understood. In this study, grave...
Detection of total microcystin in fish tissues based on lemieux oxidation, and recovery of 2-methyl-3-methoxy-4-phenylbutanoic acid (MMPB) by solid-phase microextraction gas chromatography-mass spectrometry (SPME-GC/MS) [0.03%]
基于 Lemieux 氧化的鱼组织中总微囊藻毒素的测定及 2-甲基-3-甲氧基-4-苯基丁酸（MMPB）的固相微萃取气相色谱-质谱法回收率研究
Patricia Suchy,John Berry
Patricia Suchy
Microcystins (MCs) are widespread cyanobacterial toxins in freshwater systems, and have been linked to both acute and chronic health effects. A growing number of studies suggest that MC can bioaccumulate in food webs. Although, several meth...
Application of dispersive liquid-liquid microextraction and reversed phase-high performance liquid chromatography for the determination of two fungicides in environmental water samples [0.03%]
分散液液微萃取和反相高效液相色谱法测定环境水样中两种杀菌剂残留量的方法研究
Jing Cheng,Yiwen Zhou,Mei Zuo et al.
Jing Cheng et al.
Dispersive liquid-liquid microextraction (DLLME) has been developed for the extraction and preconcentration of diethofencarb (DF) and pyrimethanil (PM) in environmental water. In the method, a suitable mixture of extraction solvent (50 μL ...
Parametric evaluation for programmable temperature vaporization large volume injection in gas chromatographic determination of polybrominated diphenyl ethers [0.03%]
程序升温顶空大型体积进样气相色谱法测定多溴联苯醚的最佳化参数研究
Hua Wei,Priyanthi S Dassanayake,An Li
Hua Wei
This work is a thorough investigation on the major operating parameters of the programmable temperature vaporization (PTV) inlet used for gas chromatographic injection, including injection mode and volume, inlet temperature, vent and purge ...
Simultaneous determination of nicotine and 3-vinylpyridine in single cigarette tobacco smoke and in indoor air using direct extraction to solid phase [0.03%]
使用直接萃取到固相同时测定单支卷烟烟气及室内的尼古丁和3-乙烯基.py啶
Bartosz Koszowski,Maciej Lukasz Goniewicz,Jan Czogala et al.
Bartosz Koszowski et al.
The aim of the present study was to develop a new analytical method of chromatographic determination of two important markers of ETS exposure: nicotine and 3-vinylpyridine (3-ethenylpyridine, 3-EP) in mainstream (MS) and sidestream (SS) smo...