journal
MENU ▼
Read by QxMD icon Read
search

Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry

journal
https://www.readbyqxmd.com/read/28794339/announcements
#1
(no author information available yet)
No abstract text is available yet for this article.
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794338/stable-isotope-analysis-of-hydrogen-and-oxygen-in-a-traditional-japanese-alcoholic-beverage-sake-from-niigata-prefecture-in-japan-and-other-countries
#2
Takashi Kuribayashi, Masamichi Sugawara, Keigo Sato, Yoshihito Nabekura, Toshio Aoki, Naoki Kano, Toshio Joh, Mitsuoki Kaneoke
Stable hydrogen and oxygen isotopic compositions (δD and δ(18)O values, respectively) were analyzed for "sake," a traditional Japanese alcohol beverage, to assess these values for the identification of its geographic origin. We collected sake (Junmai-shu; made of only rice, water, and koji) and its source water (i.e., brewing water) from breweries in Niigata Prefecture, Japan, and measured the isotopic compositions of water in these samples. The δD and δ(18)O values for the sake are well correlated with their respective values for the corresponding brewing water (δD; r = 0...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794337/determination-of-polychlorinated-biphenyls-in-fish-tissues-from-shanghai-seafood-markets-using-a-modified-quechers-method
#3
Yunyun Cui, Zhengquan Wang, Jian Cong, Liping Wang, Yuan Liu, Xichang Wang, Jing Xie
Optimized Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) pretreatment methods for determination of six polychlorinated biphenyls (PCBs) residues in fish and aquatic invertebrates samples were investigated. Large volume injection (LVI) coupled gas chromatography tandem mass spectrometry (GC-MS/MS) with selected reaction monitoring (SRM) was used to provide a very sensitive and selective means of analyzing PCBs via internal calibration. Three analytical processes were validated and compared, and the florisil Celite(®)545 pretreatment method was selected...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794336/fast-and-single-step-fluorescence-based-competitive-bioassay-microdevice-combined-pdms-microchannel-arrays-separately-immobilizing-graphene-oxide-analyte-conjugates-and-fluorescently-labelled-receptor-proteins
#4
Akihiro Shirai, Kaho Nakashima, Kenji Sueyoshi, Tatsuro Endo, Hideaki Hisamoto
In this study, a fast and easy-to-use capillary-type microdevice for competitive bioassay is proposed. The device is composed of polydimethylsiloxane (PDMS) microchannel arrays that separately immobilize polyethylene glycol (PEG) coating, which contained graphene oxide (GO)-analyte conjugates and fluorescently-labelled receptor proteins. The working principle of the device involved the spontaneous dissolution of the PEG coating, subsequent mixing and reaction with analyte to give fluorescence response, triggered by the capillary action-mediated introduction of a sample solution...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794335/colorimetric-detection-of-ascorbic-acid-based-on-the-trigger-of-gold-nanoparticles-aggregation-by-cr-iii-reduced-from-cr-vi
#5
Ning Sui, Fengya Liu, Tailing Li, Lina Wang, Tao Wang, Manhong Liu, William W Yu
Au nanoparticles (AuNPs) dispersed in water were stabilized by tripolyphosphate (P3O10(5-)). When Cr2O7(2-) (Cr(VI)) was present, the AuNPs did not change; when Cr(3+) (Cr(III)) was present, the AuNPs would aggregate because of cooperative metal-ligand reaction. Aggregated AuNPs showed different color from the non-aggregated ones. Thus, a simple colorimetric assay was made using AuNPs-Cr(VI) to detect ascorbic acid (AA). Upon introducing AA to the AuNPs-Cr(VI) system, Cr(VI) was reduced to Cr(III), and the aggregation of AuNPs occurred...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794334/development-and-applications-of-quantum-dot-based-molecularly-imprinted-polymer-composites-for-optosensing-of-carbofuran-in-water
#6
Qiang Zhou, Chengcheng Liu, Hong Zhang, Chunjie Zhao, Yanhong Wang
In this paper, quantum dot (QD)-based molecularly imprinted polymer (MIP) was fabricated and successfully utilized as a fluorescent probe for highly selective and sensitive detection of carbofuran in water samples. The MIPs were synthesized followed by a multi-step swelling and polymerization method, and then labeled with CdSe/ZnS QDs via gradual solvent evaporation. Then the prepared QDs-MIP microspheres were introduced to flow cytometry by virtue of their good dispersibility in water, and fast adsorption and desorption...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794333/development-of-time-course-oxygen-binding-analysis-for-hemoglobin-based-oxygen-carriers
#7
Yukihiro Okamoto, Shigenori Sugisaki, Keishi Suga, Hiroshi Umakoshi
Developing blood substitutes is in urgent demand for chronic blood shortage all over the world. In this connection, the oxygen binding behavior of hemoglobin-based oxygen carriers (HBOCs) is one of the most important characteristics. However, present methods available for estimating oxygen binding behavior have need of expensive apparatus, and also are not suitable for high-throughput and the time-course analysis. To overcome these problems, we proposed a simple analysis method for the time-course oxygen binding behavior of HBOCs, which employs a general UV-Vis microplate reader and a common reagent, sodium dithionite, as a reductant for HBOCs and an oxygen scavenger...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794332/room-temperature-h2s-gas-sensor-based-on-au-doped-znfe2o4-yolk-shell-microspheres
#8
Yin Yan, Patima Nizamidin, Gulmira Turdi, Nuerguli Kari, Abliz Yimit
Room-temperature type H2S sensing devices that use Au-doped ZnFe2O4 yolk-shell microspheres as the active material have been fabricated using a solvothermal method as well as subsequent annealing and a chemical etching process. The samples are characterized using X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDS), field-emission scanning electron microscopy (FESEM), and X-ray photoelectron spectroscopy (XPS). The results demonstrate that the doping of Au does not change the spinel structure of the products, which were yolk-shell microspheres, while the particle size varied with the Au doping concentration...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794331/acoustic-sensing-based-on-density-shift-of-microspheres-by-surface-binding-of-gold-nanoparticles
#9
Akihisa Miyagawa, Yoshinori Inoue, Makoto Harada, Tetsuo Okada
Herein, we propose a concept for sensing based on density changes of microparticles (MPs) caused by a biochemical reaction. The MPs are levitated by a combined acoustic-gravitational force at a position determined by the density and compressibility. Importantly, the levitation is independent of the MPs sizes. When gold nanoparticles (AuNPs) are bound on the surface of polymer MPs through a reaction, the density of the MPs dramatically increases, and their levitation position in the acoustic-gravitational field is lowered...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794330/a-3-step-chemiluminescence-method-for-chemical-oxygen-demand-measurement
#10
Do Thi Kim Hue, Shohei Hashimoto, Haruka Nishikawa, Yasuaki Maeda, Norimichi Takenaka
Direct chemiluminescence emission from the reaction of acidic permanganate and organic compounds was employed for determining the chemical oxygen demand (COD) in water (1-step CL COD). Due to the diversity of organic pollutants in water, there are no standards for COD measurements, and many compounds do not show any chemiluminescence signal in the 1-step CL COD method. As a result, this method shows a low correlation with the conventional CODMn method. In this study, a new 3-step CL COD method was developed to overcome these drawbacks...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794329/colorimetric-method-for-the-detection-of-mercury-ions-based-on-gold-nanoparticles-and-mercaptophenyl-boronic-acid
#11
Yafang Kong, Jianguo Shen, Aiping Fan
In the present study, we found that phenylboronic acid derivatives including benzene-1,4-diboronic acid (BDBA) and mercaptophenyl boronic acid (MPBA) can induce the aggregation of citrate-capped gold nanoparticles (Au NPs). However, the speed of Au NP aggregation induced by MPBA was much faster than that of BDBA. The reaction between MPBA and Hg(2+) ions resulted in the formation of MPBA-Hg(2+)-MPBA, which was similar to BDBA having two free boronic acid groups. Based on the above phenomenon, a sensitive and selective colorimetric method for the detection of mercury ions (Hg(2+)) in aqueous solution was developed...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794328/sensitive-and-simultaneous-electrochemical-sensing-for-three-dihydroxybenzene-isomers-based-on-poly-l-arginine-modified-glassy-carbon-electrode
#12
Gangbing Zhu, Heng Sun, Junjuan Qian, Xiangyang Wu, Yinhui Yi
The simultaneous and sensitive electrochemical detection of dihydroxybenzene isomers (hydroquinone, HQ; catechol, CC; resorcinol, RS) is of great significance because such isomers can be awfully harmful to the environment and human health. In this paper, by preparing poly(L-arginine) modified glassy carbon electrode (P-L-Arg/GCE) with a simple method, a highly sensitive electrochemical sensor for simultaneously detecting HQ, CC and RS was constructed successfully due to the large surface area, good electronic properties and catalytic ability of P-L-Arg/GCE and the electrostatic action between P-L-Arg (positive) and targets (negative)...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794327/a-reactive-oxygen-nitrogen-species-sensor-fabricated-from-an-electrode-modified-with-a-polymerized-iron-porphyrin-and-a-polymer-electrolyte-membrane
#13
Ryo Matsuoka, Chihiro Kobayashi, Atsushi Nakagawa, Shigeo Aoyagi, Tatsuo Aikawa, Takeshi Kondo, Shigenobu Kasai, Makoto Yuasa
We have developed an electrochemical reactive oxygen/nitrogen species sensor that can detect superoxide anion radicals (O2(-•)) and nitric oxide (NO). The reactive oxygen/nitrogen species sensor was fabricated by surface modification of an electrode with polymerized iron tetrakis(3-thienyl)porphyrin (FeT3ThP), and it can detect either O2(-•) or NO by switching the applied potential. Furthermore, we fabricated a sensor with improved selectivity by coating a Nafion(®) film onto the poly(FeT3ThP)-modified electrode...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794326/temperature-and-size-effects-on-structural-and-dynamical-properties-of-water-confined-in-1-10-nm-scale-pores-using-proton-nmr-spectroscopy
#14
Yuta Fukatsu, Kyojiro Morikawa, Yasuhisa Ikeda, Takehiko Tsukahara
We were able to fill 1 - 10 nm-scale silica pores with water by vapor condensation, and examined the freezing phenomena, structures, and molecular motions of the confined water in the temperature range from 293 to 188 K by (1)H-NMR spectroscopy. The results showed that almost all water molecules confined in 10 nm-scale pores were frozen and that approximately half of the water confined in 1 nm-scale pores existed in the liquid state even below the freezing point. The water adsorbed on the pore surfaces was estimated as a monolayer in 2...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794325/labeling-of-cytoskeletal-proteins-in-living-cells-using-biotin-ligase-carrying-a-fluorescent-protein
#15
Sairi Nishi, Chihiro Yamamoto, Sawako Yoneda, Shinji Sueda
Labeling with fluorescent proteins is now widely exploited for elucidating the functions and roles of target proteins in living cells. Previously, we developed a protein labeling method by combining a fluorescent protein with a biotinylation reaction from archaeon Sulfolobus tokodaii. Biotinylation from S. tokodaii has a unique property that biotin protein ligase (BPL) forms a stable complex with its biotinylated substrate protein (BCCP). By taking advantage of this unique property, a target protein carrying BCCP in living cells can be labeled through biotinylation with BPL carrying a fluorescent protein...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794324/christmas-tree-derived-amplification-immuno-strategy-for-sensitive-visual-detection-of-vibrio-parahaemolyticus-based-on-gold-label-silver-stain-technology
#16
Xinxin Song, Yanjie Wu, Lin Wu, Yufang Hu, Wenrou Li, Zhiyong Guo, Xiurong Su, Xiaohua Jiang
A developed Christmas-tree derived immunosensor based on a gold label silver stain (GLSS) technique was fabricated for a highly sensitive analysis of Vibrio parahaemolyticu (VP). In this strategy, captured VP antibody (cAb) was immobilized on a solid substrate; then, the VPs were sequentially tagged with a signal probe by incubating the assay with a detection VP antibody (dAb) conjugated gold nanoparticles (AuNPs)-labeled graphite-like carbon nitride (g-C3N4). Finally, the attached signal probe could harvest a visible signal by the silver meal deposition, and then followed by homebrew Matlab 6...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794323/development-of-an-attenuated-total-reflection-based-fiber-optic-sensor-for-real-time-sensing-of-biofilm-formation
#17
Tatsuya Orii, Takuya Okazaki, Noriko Hata, Kazuharu Sugawara, Faidz A Rahman, Hideki Kuramitz
A fiber-optic sensor capable of real-time monitoring of biofilm formation in water was developed. The sensor can be easily fabricated by removing the cladding of a multimode fiber optic to expose the core. The sensing action is based on the penetration of an evanescent wave through a biofilm formed on the surface of the exposed fiber core during total internal reflection. The proposed setup can be used to analyze the transmittance response over a wide wavelength range using a white-light source and a spectroscopy detector...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794322/experimental-confirmation-of-srf-ch3f-0-4-and-srf-h2o-ch3f-0-3-cluster-ions-generated-in-the-reaction-cell-of-icp-qms-qms
#18
Yanbei Zhu, Kazumi Nakano, Yasuyuki Shikamori
Multiple unknown high-order cluster ions were observed as the results of ion-molecule reactions between strontium ions and fluoromethane molecules in the reaction-cell of an inductively coupled plasma tandem quadrupole mass spectrometer (ICP-QMS/QMS). In order to elucidate the structures of these unknown cluster ions, isotope-enriched fluoromethane (CD3F) was used as the reaction-cell gas compared to natural fluoromethane (CH3F). As results, SrF(CH3F)0-4(+) and SrF(H2O)(CH3F)0-3(+) cluster ions were experimentally confirmed in the present work, while SrF(H2O)(CH3F)0-3(+) cluster ions in the reaction-cell of ICP-QMS/QMS were observed and confirmed for the first time in the world...
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794321/mercury-sensing-probes
#19
Shin-Ichi Ohira
No abstract text is available yet for this article.
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
https://www.readbyqxmd.com/read/28794320/-frontiers-of-plasma-spectrochemistry-in-analytical-chemistry
#20
(no author information available yet)
No abstract text is available yet for this article.
2017: Analytical Sciences: the International Journal of the Japan Society for Analytical Chemistry
journal
journal
29166
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"