Sayed Horkoss,Roger Lteif,Toufic Rizk
Sayed Horkoss
The aim of this paper is to clarify the influence of the clinker SO(3) on the amount of C(3)A. The calculation of the cement phases percentages is based on the research work, Calculation of the Compounds in Portland Cement, published by Bog...
L Zea,L Moyano,M J Ruiz et al.
L Zea et al.
The aroma of Fino sherry wines produced by industrial biological aging for 0, 1.5, 2.5, 4.5, and 6 years in the Montilla-Moriles region (southern Spain) was studied by gas chromatography-olfactometry. The aroma sensations detected by 3 trai...
Sensitive spectrophotometric method for quantitation of guaifenesin and dropropizine in their dosage forms [0.03%]
微量甘草酸的灵敏分光光度法定量测定含祛痰药和dropropizine药物中的含量
Ola M Abdallah
Ola M Abdallah
Guaifenesin and dropropizine were analyzed through oxidation with periodic acid to give formaldehyde which was allowed to condense with 4-Amino-5-hydrazino-4H [1,2,4]-triazole-3-thiol (AHTT). The condensation product was further oxidized to...
Electrochemical performances of electroactive nano-layered organic-inorganic perovskite containing trivalent iron ion and its use for a DNA biosensor preparation [0.03%]
含三价铁离子的电活性纳米层状有机-无机钙钛矿材料的电化学性能及其在DNA生物传感器制备中的应用
Jing Wu,Hanxing Liu,Zhidong Lin et al.
Jing Wu et al.
A steady nano organic-inorganic perovskite hybrid with [H(2)3-AMP](3/2)Fe(CN)(6) (3-AMP = 3-methylaminopyridine) was prepared in the air. The structure is an unusual layered organic-inorganic type. The resulting hybrid enveloped in paraffin...
Discriminant Analysis of Undaria pinnatifida Production Areas Using Trace Elemental Analysis [0.03%]
利用微量元素分析discriminante区分海藻Laminaria japonica的产地
Mikio Kaihara
Mikio Kaihara
Increasingly, attention is being paid to declaring the origin of agricultural and marine products after the advent of the bovine spongiform encephalopathy (BSE; commonly known as mad-cow disease). The display of the production centers on U....
Occurrence and sources of triterpenoid methyl ethers and acetates in sediments of the cross-river system, southeast Nigeria [0.03%]
尼日利亚东南部十字河系沉积物中三萜甲醚和醋酸酯的来源及发生规律
Orok E Oyo-Ita,Bassey O Ekpo,Daniel R Oros et al.
Orok E Oyo-Ita et al.
Pentacyclic triterpenol methyl ethers (PTMEs), germanicol methyl ether (miliacin), 3-methoxyfern-9(11)-ene (arundoin), beta-amyrin methyl ether (iso-sawamilletin), and 3-methoxytaraxer-14-ene (sawamilletin or crusgallin) were characterized ...
Heavy metal and trace metal analysis in soil by sequential extraction: a review of procedures [0.03%]
土壤顺序提取法重金属和痕量金属分析研究进展及评价
Amanda Jo Zimmerman,David C Weindorf
Amanda Jo Zimmerman
Quantification of heavy and trace metal contamination in soil can be arduous, requiring the use of lengthy and intricate extraction procedures which may or may not give reliable results. Of the many procedures in publication, some are desig...
E V Lau,S Gan,H K Ng
E V Lau
This paper aims to provide a review of the analytical extraction techniques for polycyclic aromatic hydrocarbons (PAHs) in soils. The extraction technologies described here include Soxhlet extraction, ultrasonic and mechanical agitation, ac...
Simultaneous Distillation Extraction of Some Volatile Flavor Components from Pu-erh Tea Samples-Comparison with Steam Distillation-Liquid/Liquid Extraction and Soxhlet Extraction [0.03%]
普洱茶挥发性风味物质的同步蒸馏萃取研究——与水蒸汽蒸馏、液—液萃取和索氏提取比较
Xungang Gu,Zhengzhu Zhang,Xiaochun Wan et al.
Xungang Gu et al.
A simutaneous distillation extraction (SDE) combined GC method was constructed for determination of volatile flavor components in Pu-erh tea samples. Dichloromethane and ethyl decylate was employed as organic phase in SDE and internal stand...
Analysis of bio-obtainable endocrine disrupting metals in river water and sediment, sewage influent/effluent, sludge, leachate, and concentrated leachate, in the irish midlands shannon catchment [0.03%]
爱尔兰中部香农河流域水体、底泥、污水、污泥、渗滤液及浓缩渗滤液中内分泌干扰金属元素的分析研究
Antoinette M Reid,Concepta A Brougham,Andrew M Fogarty et al.
Antoinette M Reid et al.
The application of an acid digestion and subsequent solid-phase extraction (SPE) procedure were implemented as preliminary treatments prior to quantifying the levels of potentially endocrine disrupting metals (EDMs) in a variety of solid an...