Investigation on full 6" masks using innovative solutions for direct physico-chemical analyses of mask contamination and haze

2011 ◽  
Author(s):  
L. Dussault ◽  
B. Pelissier ◽  
F. Dufaye ◽  
S. Gough ◽  
J. Hamonne ◽  
...  
Keyword(s):  
Chemical Analyses ◽  
Physico Chemical ◽  
Innovative Solutions

Investigation on full 6′′ masks using innovative solutions for direct physico-chemical analyses of mask backglass contamination and haze

2013 ◽  
Vol 104 ◽  
pp. 120-129
Author(s):  
B. Pelissier ◽  
L. Dussault ◽  
F. Dufaye ◽  
S. Gough ◽  
J. Hamonne ◽  
...  
Keyword(s):  
Chemical Analyses ◽  
Physico Chemical ◽  
Innovative Solutions

scholarly journals Total synthesis of [ 15 N]-labelled C6-substituted purines from [ 15 N]-formamide—easy preparation of isotopically labelled cytokinins and derivatives

2018 ◽  
Vol 5 (11) ◽  
pp. 181322 ◽  
Author(s):  
Jan Buček ◽  
Marek Zatloukal ◽  
Libor Havlíček ◽  
Lucie Plíhalová ◽  
Tomáš Pospíšil ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Metabolic Profiling ◽  
Growth Regulation ◽  
Plant Tissues ◽  
Chemical Analyses ◽  
Purine Derivatives ◽  
Biological Matrices ◽  
Physico Chemical ◽  
Plant Growth Regulation

Cytokinins (CKs) and their metabolites and derivatives are essential for cell division, plant growth regulation and development. They are typically found at minute concentrations in plant tissues containing very complicated biological matrices. Therefore, defined standards labelled with stable isotopes are required for precise metabolic profiling and quantification of CKs, as well as in vivo elucidation of CK biosynthesis in various plant species. In this work, 11 [ 15 N]-labelled C6-purine derivatives were prepared, among them 5 aromatic ( 4, 5, 6, 7, 8 ) and 3 isoprenoid ( 9, 10, 11 ) CKs. Compared to current methods, optimized syntheses of 6-amino-9H-[ 15 N 5 ]-purine (adenine) and 6-chloro-9H-[ 15 N 4 ]-purine (6-chloropurine) were performed to achieve more effective, selective and generally easier approaches. The chemical identity and purity of prepared compounds were confirmed by physico-chemical analyses (TLC; HRMS; HPLC–MS; 1 H, 13 C, 15 N NMR). The presented approach is applicable for the synthesis of any other desired [ 15 N 4 ]-labelled C6-substituted purine derivatives.

Comparative Study of Physico-Chemical Analyses of Different Water Resources in Setiu Wetland, Terengganu

2018 ◽  
pp. 25-37
Author(s):  
Mohd Nizam Lani ◽  
Nurul Fatin Malek Rivan ◽  
Adilah Ismail ◽  
Wan Bayani Wan Omar ◽  
Zaiton Hassan ◽  
...  
Keyword(s):  
Water Resources ◽  
Comparative Study ◽  
Chemical Analyses ◽  
Physico Chemical

scholarly journals Physico-Chemical and Antioxidant Characteristics in Fruits of Walnut (Juglans regia L.) Genotypes from Inner Anatolia

2016 ◽  
Vol 44 (2) ◽  
pp. 586-592 ◽  
Author(s):  
Omer BEYHAN ◽  
Sadiye GOZLEKCI ◽  
Muttalip GUNDOGDU ◽  
Sezai ERCISLI
Keyword(s):  
Total Phenolic Content ◽  
Phenolic Content ◽  
Juglans Regia ◽  
Fruit Weight ◽  
Total Phenolic ◽  
Chemical Analyses ◽  
Physico Chemical ◽  
Long Time ◽  
Good Potential ◽  
Antioxidant Characteristics

Walnut fruits are used for their nutrition properties for a long time in Anatolia, where seed propagated walnuts are naturally found, as solitary individuals or dense populations. Some relevant physico-chemical and antioxidant characteristics of fruits were determined for fifteen promising walnut (Juglans regia L.) selections (named 'G-1' to 'G-15') propagated from seeds. The well-known Turkish walnut cultivar 'Sebin' was included in the analysis as a standard in order to make comparison with seed propagated genotypes. The average fruit weight and kernel ratios ranged from 7.43 to 12.61 g and 45.10 to 57.83% among the studied genotypes, respectively. The chemical analyses showed that protein, crude oil, ash, carbohydrate and dietary fiber contents of the analyzed walnut genotypes were between 11.09-18.16%, 55.38-65.15%, 1.61-2.08%, 12.01-17.89% and 2.90-4.12%, respectively. Total phenolic content was found between 1,107-1,876 mg GAE/100 g among the genotypes and most of them had higher phenolic content compared with cv. 'Sebin'. The total tocopherols content ranged from 30.0 to 44.4 mg/100 g of the extracted oil. The most common tocopherol in all samples was γ-tocopherol. The results obtained in the hereby study indicated that the seed propagated walnut trees can be very diverse and their nuts have a good potential for valuable sources of phytochemicals.

Seabed sediments collection for physico-chemical analyses – a review

2018 ◽  
Vol 33 (1) ◽  
pp. 158-163
Author(s):  
Marcin Joachim Grzegorczyk ◽  
Katarzyna Galer – Tatarowicz
Keyword(s):  
Chemical Warfare Agents ◽  
Chemical Warfare ◽  
Hazardous Substances ◽  
Chemical Analyses ◽  
Physico Chemical ◽  
Warfare Agents ◽  
High Level ◽  
Sampling Procedures ◽  
International Conventions ◽  
Seabed Sediments

A description of equipment and tools relative to the sampling of seabed sediments for physicochemical analyses is presented in accordance with the Polish Standard PN-EN ISO 5667-19:2006. The paper reports sampling procedures for various purposes, instructions regarding samples handling, with emphasis on hazardous substances, chemical warfare agents (BST). It also includes information and instructions concerning high level of safety while working at sea, in accordance with international conventions SCTW and SOLAS.

Synthetic Studies and Structural Aspects of some Metallacyclic Derivatives of Titanium (IV) - Better Precursors for Titania

2012 ◽  
Vol 584 ◽  
pp. 411-414 ◽  
Author(s):  
Madhvesh Pathak ◽  
Blassan Samuel ◽  
Kiran Tummalapalli ◽  
Prasanth Vuppalapati Giri ◽  
Rakesh Bohra ◽  
...  
Keyword(s):  
High Yield ◽  
Chemical Analyses ◽  
Molar Ratios ◽  
Octahedral Environment ◽  
Physico Chemical ◽  
Synthetic Studies ◽  
Derivatives Of ◽  
Structural Aspects

Titanium(IV) complexes of the type [(acac)2Ti(O-G-O] and [(acac)2Ti(OCH2CH2SH)2] {where G = (CH2)2, CH2CH(CH3), CH2CH(C2H5), CH(CH3)CH(CH3) have been synthesized in high yield by the interaction of the precursor [(acac)2Ti( OR)2] {where R = Pri , Et} with a variety of glycols and thioglycols in 1:1 and 1:2 molar ratios in refluxing benzene under anhydrous condition yield heteroleptic derivatives. On the basis of physico-chemical analyses, a cis-octahedral environment around Ti (IV) is proposed.

X-ray study and physico-chemical analyses of magnesium hexaaquabromate

1995 ◽  
Vol 30 (2) ◽  
pp. 255-262 ◽  
Author(s):  
J. Lutoslawska-Rogóż ◽  
E. Kapturkiewicz-Kowal ◽  
S. A. Hodorowicz
Keyword(s):  
Chemical Analyses ◽  
X Ray ◽  
Physico Chemical
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