Self-Assemblies of Single-Walled Carbon Nanotubes through Tunable Tethering of Pyrenes by Dextrin for Rapidly Chiral Sensing [0.03%]
手性单壁碳纳米管的快速传感组装式聚集体的研究——通过可控修饰将茋基团连接到葡聚糖上
Wei-Li Wei,Qiushui Chen,Haifang Li et al.
Wei-Li Wei et al.
Pyrene-modified dextrin (Py-Dex) was synthesized via the Schiff base reaction between reducing end of dextrins and 1-aminopyrene, and then self-assemblies of single-walled carbon nanotubes (SWNTs) were fabricated through the tunable tetheri...
Experimental Study of Closed System in the Chlorine Dioxide-Iodide-Sulfuric Acid Reaction by UV-Vis Spectrophotometric Method [0.03%]
紫外分光光度法测定封闭体系中二氧化氯与碘酸根及过二硫酸氢钾复合盐的反应特性研究
Na Li,Laishun Shi,Xiaomei Wang et al.
Na Li et al.
The mole ratio r(r = [I(-)](0)/[ClO(2)](0)) has great influence on ClO(2)-I(-)-H(2)SO(4) closed reaction system. By changing the initiate concentration of potassium iodide, the curve of absorbance along with the reaction time was obtained a...
Derivatization Ion Chromatography for the Determination of Monoethanolamine in Presence of Hydrazine in PHWR Steam-Water Circuits [0.03%]
用于压水堆汽水回路中肼存在下单乙醇胺测定的衍生阴离子色谱法研究
Ayushi D,Arijit Sengupta,Sangita D Kumar et al.
Ayushi D et al.
A simple, rapid and accurate method for the determination of monoethanolamine (MEA) in PHWR steam-water circuits has been developed. MEA is added in the feed water to provide protection against corrosion while hydrazine is added to scavenge...
Direct Zinc Determination in Brazilian Sugar Cane Spirit by Solid-Phase Extraction Using Moringa oleifera Husks in a Flow System with Detection by FAAS [0.03%]
巴西甘蔗酒中锌的直接测定及其在流动体系中利用毛瑞果壳进行固相萃取和火焰原子吸收检测的方法
Vanessa N Alves,Simone S O Borges,Nivia M M Coelho
Vanessa N Alves
This paper reports a method for the determination of zinc in Brazilian sugar cane spirit, (cachaça in Portuguese), using solid-phase extraction with a flow injection analysis system and detection by FAAS. The sorbent material used was acti...
Titrimetric and spectrophotometric assay of oxcarbazepine in pharmaceuticals using N-bromosuccinimide and bromopyrogallol red [0.03%]
N-溴代丁二酰亚胺和溴紫精红指示剂测定药物中奥卡西平的滴定法和分光光度法测定
Nagaraju Rajendraprasad,Kanakapura Basavaiah,Kanakapura B Vinay
Nagaraju Rajendraprasad
Titrimetric and spectrophotometric methods are described for the determination of oxcarbazepine (OXC) in bulk drug and in tablets. The methods use N-bromosuccinimide (NBS) and bromopyrogallol red (BPR) as reagents. In titrimetry (method A),...
Analysis of digoxin and metildigoxin in whole blood using solid-phase extraction and liquid chromatography tandem mass spectrometry [0.03%]
使用固相萃取和液相色谱-串联质谱分析全血中的地高辛和甲基地高辛
Paula Melo,Rita Machado,Helena M Teixeira
Paula Melo
A simple and rapid UPLC/MS/MS method has been developed and validated for the analysis of digoxin and metildigoxin in whole blood. Samples were prepared by SPE extraction with Oasis HLB columns. Separation was achieved with an ACQUITY UPLC ...
Analysing the Temperature Effect on the Competitiveness of the Amine Addition versus the Amidation Reaction in the Epoxidized Oil/Amine System by MCR-ALS of FTIR Data [0.03%]
基于FTIR数据多维曲线分辨交替最小二乘法分析环氧植物油与伯胺催化条件下加氨反应和酰胺化反应竞争历程的温度效应研究
Vanessa Del Río,M Pilar Callao,M Soledad Larrechi
Vanessa Del Río
The evaluation of the temperature effect on the competitiveness between the amine addition and the amidation reaction in a model cure acid-catalysed reaction between the epoxidized methyl oleate (EMO), obtained from high oleic sunflower oil...
Optimization and Validation of RP-HPLC-UV/Vis Method for Determination Phenolic Compounds in Several Personal Care Products [0.03%]
几种个人护理产品中苯酚类化合物RP-HPLC-UV/Vis测定条件的优化及验证
Mohammed Akkbik,Zaini Bin Assim,Fasihuddin Badruddin Ahmad
Mohammed Akkbik
An HPLC method with ultraviolet-visible spectrophotometry detection has been optimized and validated for the simultaneous determination of phenolic compounds, such as butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) as anti...
Effect of Oxygen-Reducing Atmospheres on the Safety of Packaged Shelled Brazil Nuts during Storage [0.03%]
减氧气体对包装碧根果储藏期间安全性的效果研究
Vildes Maria Scussel,Barbara Nantua Giordano,Vanessa Simao et al.
Vildes Maria Scussel et al.
This work reports the application of oxygen-(O(2)-) reducing atmosphere methods on stored shelled Brazil nut (Bertholletia excelsa H.B.K.) packs aiming to evaluate the degree of aflatoxin degradation, nuts lipid oxidative stability, fungi c...
Formaldehyde in alcoholic beverages: large chemical survey using purpald screening followed by chromotropic Acid spectrophotometry with multivariate curve resolution [0.03%]
酒类中的甲醛：大型化学调查采用purpald筛选后使用比色法结合多变量曲线分辨率分析
Julien A Jendral,Yulia B Monakhova,Dirk W Lachenmeier
Julien A Jendral
A strategy for analyzing formaldehyde in beer, wine, spirits, and unrecorded alcohol was developed, and 508 samples from worldwide origin were analyzed. In the first step, samples are qualitatively screened using a simple colorimetric test ...