Relationship between Width and Height of π* Peak in C K-XANES of Graphitic Carbons [0.03%]
石墨碳材料C K边X射线吸收近边结构( XANES)谱π*峰宽与峰高的关系研究
Yasuji Muramatsu,Kentaro Murayama,Toru Okada et al.
Yasuji Muramatsu et al.
The relationship between the width and height of the π* peak on X-ray absorption near edge structure (XANES) in the C K region of graphitic carbons is investigated from XANES measurements and theoretical analysis. This relationship is here...
Surface Plasmon Resonance Sensor for Novel Detection of Histidine Based on the Hg2+ Induced Aggregation of AuNPs Followed by Preconcentration with Chitosan Gel as Solid Phase Biosorbent [0.03%]
一种基于组氨酸的新检测方法的表面等离子体共振传感器：利用Hg2+诱导的AuNPs聚集及壳聚糖凝胶固相生物吸附剂富集
Yuwapon Uppa,Supalax Srijaranai,Saksit Chanthai
Yuwapon Uppa
This research work aims to propose an extraction method using chitosan as the sorbent and gold nanoparticles (AuNPs) as the colorimetric sensor for the development of a simple, cost-effective, rapid, sensitive, and selective detection metho...
Establishment of Detection Methods for Five Cannabinoids in Hemp Cosmetics Based on HPLC [0.03%]
基于HPLC的化妆品中五种大麻素检测方法的建立
Dong-Mei Sun,Lun Song,Hai-Yan Wang et al.
Dong-Mei Sun et al.
A simultaneously HPLC detection method for cannabidiolic acid (CBDA), cannabidiol (CBD), cannabinol (CBN), Δ9-tetrahydrocannabinol (THC), tetrahydro-cannabinolic acid (THCA) in 3 kinds of cosmetics matrix containing hemp leaf extract was d...
Thermal Extraction of Polycyclic Aromatic Hydrocarbons from Atmospheric 2.5 μm Particulate Matter Collected on a Filter Paper Using a High-Temperature Headspace Method [0.03%]
采用高温顶空法从滤纸上采集的大气PM2.5颗粒物中热脱出多环芳烃物质
Xue Chu,Akira Aono,Koki Tanaka et al.
Xue Chu et al.
Recently, owing to the performance improvement of the headspace (HS)-sampling devices and its consumables, HS vial samples can be analyzed at temperatures up to 300°C. Some studies have attempted to analyze polycyclic aromatic hydrocarbons...
Photometric Screening of Tetrabromobisphenol A in Resin Using Iron(III) Nitrate/Hexacyanoferrate(III) Mixture as a Colorimetric Reagent [0.03%]
利用铁(NO3)3/六氰合铁(III)酸盐混合物为显色剂光度测定树脂中的四溴双酚A
Hiroyuki Yanagisawa,Kenji Sasaki,Yoshimi Sasaki et al.
Hiroyuki Yanagisawa et al.
This study aims to provide a simple way to identify the possibility of tetrabromobisphenol A (TBBPA) present in polymers without the need for complicated separation with expensive equipment. Since the presence of phenolic hydroxyl groups is...
Characterisation of Dissolved Organic Matter Fractions Released from Scottish Peatlands [0.03%]
苏格兰泥炭地释放的溶解有机物组分的表征
Akira Watanabe,Mariko Katoh,Moira McMaster et al.
Akira Watanabe et al.
A high concentration of dissolved organic matter is intimately related to the chemistry and ecology of water environments linked to peatlands. To understand the variations in the chemical characteristics of peat derived dissolved organic ma...
Optimization of Lithium Metaborate Fusion and Post-ultrasonic Extraction for Multi-element Determination in Graphite by ICP-AES [0.03%]
用于石墨中多元素测定的锂甲基硼酸盐熔融和超声波提取条件的优化/icp-aes法
Liangcheng Zhao,Li Wei,Yanqiao Hu et al.
Liangcheng Zhao et al.
Existing methods can not achieve rapid mass decomposition and multi-element analysis of graphite ore samples. In this study, it is found that molten lithium metaborate can destroy the structure of graphite, causing graphite C to be oxidized...
Simple Ozone Scrubber Using a Glass Fiber Filter Impregnated with Hydroquinone for the Quantitative Analysis of Ambient Air Samples [0.03%]
一种用于定量分析环境空气样品的简单臭氧吸收装置：使用联苯酚浸渍的玻璃纤维滤膜
Hironari Sakamoto,Shigehisa Uchiyama,Moka Shimidzu et al.
Hironari Sakamoto et al.
As a standard method for measuring the concentration of carbonyl compounds in air, 2,4-dinitrophenylhydrazine (DNPH) derivatization followed by high-performance liquid chromatography (HPLC) is widely used. However, the method is often plagu...
Size Analysis of Small Metal Nanoparticles Using Single Particle ICP Mass Spectrometry [0.03%]
单颗粒ICP质谱法分析小型金属纳米颗粒的粒径分布
Shuji Yamashita,Masaki Nakazato,Takafumi Hirata
Shuji Yamashita
For size analysis of small nanoparticles (i.e., nanoparticles smaller than 10 nm) using spICP-MS, two approaches were employed to improve the signal-to-noise ratio of ion signals emanating from small nanoparticles. The first one was enhance...
How Feasible is Direct Determination of Rare Earth Elements in Seawater by ICP-MS? [0.03%]
海水直接测稀土元素的可行性探讨——ICP-MS法
Olga V Kuznetsova,Nikita V Dushenko,Andrei R Timerbaev
Olga V Kuznetsova
With the increasingly wide industrial use of rare earth elements (REEs), their release into marine systems makes it important to understand in what quantities they occur and to what geochemical processes they contribute, preferably using di...