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jrc survey sample storage storage temperature and material of storage containers

modern HPLC for practicing scientists

modern HPLC for practicing scientists

Y - Dược

... Tim Wehr of BioRad; John Martin and Bill Campbell of Supelco; Dr Andy Alpert of PolyLC; Margie Dix of Springborn-Smithers Laboratories; Dr Linda Ng of FDA, CDER; and Ursula Caterbone of MacMod ... degree of peak symmetry and is defined at peak width of 10% of peak height (W0.1) Note that Tf is used here instead of T, as in the USP, because T often stands for temperature BASIC TERMS AND CONCEPTS ... autosamplers and data systems for unattended analysis and report generation A host of highly sensitive and specific detec- MODES OF HPLC Table 1.1 Advantages and Limitations of HPLC Advantages • Rapid and...
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In silico methodologies for selection and prioritization of compounds in drug discovery

In silico methodologies for selection and prioritization of compounds in drug discovery

Cao đẳng - Đại học

... elements (i, j) and (j, i) of the matrix will be assigned the value of “1” if atoms i and j are bonded and the value of “0” otherwise The adjacency matrix S represents the query substructure and the ... resources and time required for the systematic exploration of the full SAR landscape are often overwhelming and thus not practical Therefore, in the final part of this thesis, a novel application of ... at the reached leaf nodes The randomization of RF is achieved by training each tree on a random subset of the training data and also by considering a random subset of possible binary tests at each...
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Biointormatics of targeted therapeutics and applications in drug discovery

Biointormatics of targeted therapeutics and applications in drug discovery

Tổng hợp

... distribution profiles of 88 and 650 anticancer drugs and natural products 104 Figure Potency distribution profiles of 102, 609 and 99 antibacterial drugs, natural products (NPs) and NP ... 28 Table 2 List of ICD-9-CM and ICD-10-CM code blocks and the corresponding classes of diseases and related health problems 54 Chapter Table Datasets of individual-target and multi-target ... efficient data management and analysis methods The development of databases to curate, store, integrate and retrieve data and methods to analyze and visualize data are of importance and practical use...
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lc ms applications in drug development

lc ms applications in drug development

Sinh học

... application that increases the rate of sample analysis from 10 samples/day to 50 samples/day would reduce the cost of analysis from $125 /sample to $25 /sample (Courtesy of Milestone Development Services, ... traditional methods of sample analysis would be left to deal with the bulk of drug candidates and their corresponding samples MOTIVATING FACTORS The motivation to implement quantitative and/ or qualitative ... (number of samples) and value (cost) on drug development is highlighted independent of the technical features of LC/MS analysis These unique industry perspectives offer an enabling “currency” and...
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DRUG DISCOVERY RESEARCH IN PHARMACOGNOSY ppt

DRUG DISCOVERY RESEARCH IN PHARMACOGNOSY ppt

Sức khỏe giới tính

... problems such as availability of good quality raw material, authentication of raw material, availability of standards, proper standardization methodology of single drugs and formulation, quality control ... medicine Lack of proper standard parameters for the standardization of herbal preparation and several instances of substandard herbs, adulterated herbs come into existence To meet new thrust of inquisitiveness, ... characteristics Aromatic odour of umbelliferous fruits and sweet taste of liquorice are the examples of this type of evaluation where odor of drug depends upon the type and quality of odourous principles...
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In silico drug discovery on computational Grids for finding novel drugs against neglected diseases

In silico drug discovery on computational Grids for finding novel drugs against neglected diseases

Kỹ thuật

... the achievements and novelty of this thesis This chapter also discusses the use and significance of current work in the area of academic drug discovery research and the role of collaborative ... validation, understanding the protein, evolution and pylogeny and protein modeling [43]  Cheminformatics techniques hold lot of prospective in storage, management and maintenance of information ... process in terms of costs and time [60] This Figure illustrates that a total of ~30% of the total costs and 15% of time can be saved by utilizing rational approaches 21 Chapter State of the art on...
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Báo cáo y học:

Báo cáo y học: "Distribution patterns of small-molecule ligands in the protein universe and implications for origin of life and drug discovery" doc

Báo cáo khoa học

... bio-ligands Ligands and theand2 of bio-ligands and binding ATP, ligands Additionalfor file 1ownerships of metabolism-relevantADP and block numbers of for proteins folds that bindligands ligands them ... ACD-SC-derived ordinary molecules; Ligands, sc-PDB-derived ligands; Ligands (≤ 3), ligands covering ≤ folds; Ligands (4-9), ligands covering 4-9 folds; Ligands (≥ 10), ligands covering ≥ 10 folds Implications ... 2007, 100 10 1 10 Number of domains binding ligand (L) Figure Power-law behaviors of ligand-protein binding Power-law behaviors of ligand-protein binding The number of ligands (N) decays with an...
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Pharmacokinetics pharmacodynamics driven approach for lead optimization in anti mycobacterial and anti malarial drug discovery

Pharmacokinetics pharmacodynamics driven approach for lead optimization in anti mycobacterial and anti malarial drug discovery

Cao đẳng - Đại học

... rapid emergence of resistance against standard TB drug regimen, new drug candidates with novel mechanisms of action are needed urgently Figure History of drug discovery and development of treatment ... for C max and AUC of PA-824 (A), NI-622 (B), and NI-644 (C) 94 Figure 27 Dose linearity test by power regression analysis in lungs for Cmax and AUC of PA-824 (A), NI-622 (B), and NI-644 ... (kanamycin and amikacin), cycloserine, ethionamide, protionamide, capreomycin, aminosalicylic acid, and fluoroquinolones (including ofloxacin, levofloxacin, gatifloxacin and moxifloxacin)], and is...
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Implementation of a drug discovery tool for the evaluation of anti fibrotic compounds application in fibrovascular disorders

Implementation of a drug discovery tool for the evaluation of anti fibrotic compounds application in fibrovascular disorders

Tổng hợp

... denaturation temperature of procollagen molecules (Berg and Prockop, 1973) There is a positive correlation between the melting temperature of the triple helix and the extent of hydroxylation of proline ... maximum excitation and emission of DAPI when it is bound to dsDNA is 358 nm and 461 nm respectively Figure 2.2 The chemical structure of DAPI Figure 2.3 Excitation and emission profiles of DAPI bound ... blotting of the medium and the cell layer fraction of HSF culture……………………………………………………………… 67 Figure 4.17 The schematic drawing of the effect of volume exclusion in the distribution of procollagen and...
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Human embryonic stem cells as a cellular model for osteogenesis in implant testing and drug discovery

Human embryonic stem cells as a cellular model for osteogenesis in implant testing and drug discovery

Kỹ thuật - Công nghệ

... TESTING AND DRUG DISCOVERY LI MINGMING (B.Sci), NUS A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF SCIENCE DEPARTMENT OF ORAL & MAXILLO-FACIAL SURGERY FACULTY OF DENTISTRY NATIONAL UNIVERSITY OF SINGAPORE ... Chapter II Culture and Propagation of H9 hESCs…….………17 2.1 Material and methods…………………………………………………… 18 2.1.1 Culture of H9 hESCs 2.1.2 Embryoid body (EB) formation 2.1.3 Pluripotency of H9 hESCs 2.1.4 ... types of materials are currently used in clinical applications and commercially available, such as ceramics, composite materials, metal alloys, bio-absorbable materials, silicone, etc Most of these...
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Interim Method for Determinationof Melamine and Cyanuric AcidResidues In Foods using LC-MS/MS:Version 1.0

Interim Method for Determinationof Melamine and Cyanuric AcidResidues In Foods using LC-MS/MS:Version 1.0

Y - Dược

... mL of acetonitrile and allow to gravity drip Add about mL of 5% ammonium hydroxide in water and allow to gravity drip Close valves to tubes Add mL of 5% ammonium hydroxide in water Add mL of sample ... Standards A Calibration and spiking concentrations can be varied as needed B Internal standard levels can also be adjusted as dictated by instrument sensitivity and availability of labeled material ... grams of sample (tissue or liquid infant formula) into 50 mL Falcon Tube, record weight in notebook For samples with a low water content (e.g powdered infant formula), weigh gram of sample and...
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Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC-MS)

Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC-MS)

Nông - Lâm - Ngư

... carbendazim, propoxur, aminocarb, aldicarb… 1.2.2 Carbofuran [13] Carbofuran thuốc trừ sâu nhóm carbamat độc nhất, có tên 2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate, tên thương mại Furadan, ... dụng detector huỳnh quang để xác định carbofuran đề cập Phương pháp dựa phản ứng carbofuran với KMnO4 luminol môi trường kiềm nhẹ tạ thành hợp chất màu Carbofuran bị oxi hóa tạo thành anion 3-aminophthalate ... giảm tầm nhìn… Ở liều cao gây tử vong Chỉ cần uống 1ml carbofuran dẫn tới tử vong Theo WHO, mức hấp thụ hàng ngày cho phép (ADI) carbofuran 0,01mg/kg trọng lượng thể Liều gây chết trung bình chuột...
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Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC-MS)

Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC-MS)

Khoa học tự nhiên

... carbendazim, propoxur, aminocarb, aldicarb… 1.2.2 Carbofuran [13] Carbofuran thuốc trừ sâu nhóm carbamat độc nhất, có tên 2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate, tên thương mại Furadan, ... dụng detector huỳnh quang để xác định carbofuran đề cập Phương pháp dựa phản ứng carbofuran với KMnO4 luminol môi trường kiềm nhẹ tạ thành hợp chất màu Carbofuran bị oxi hóa tạo thành anion 3-aminophthalate ... giảm tầm nhìn… Ở liều cao gây tử vong Chỉ cần uống 1ml carbofuran dẫn tới tử vong Theo WHO, mức hấp thụ hàng ngày cho phép (ADI) carbofuran 0,01mg/kg trọng lượng thể Liều gây chết trung bình chuột...
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NGHIÊN CỨU ĐỊNH LƯỢNG ĐỘC TỐ SINH HỌC BIỂN ASP TRONG THỦY SẢN VÀ SẢN PHẨM THỦY SẢN BẰNG PHƯƠNG PHÁP SẮC KÝ LỎNG GHÉP KHỐI PHỔ TANDEM LC-MS/MS

NGHIÊN CỨU ĐỊNH LƯỢNG ĐỘC TỐ SINH HỌC BIỂN ASP TRONG THỦY SẢN VÀ SẢN PHẨM THỦY SẢN BẰNG PHƯƠNG PHÁP SẮC KÝ LỎNG GHÉP KHỐI PHỔ TANDEM LC-MS/MS

Thạc sĩ - Cao học

... quang HPLC High Performance Liquid Chromatography Liquid Chromatograph Tandem Mass Spectrometer Limit of Detection Limit of Quantitative Normal Phase Liquid Chromatography Not detected Reversed ... plana), trai (Mytilus edulis), razor clams (Siliqua patula) and điệp (Pecten maximus) [Wekell et al., 1994; Rhodes et al., 1998; Vale and Sampayo, 2001] DA bị tích tụ nhuyễn thể chế ăn kiểu màng ... ete Không Cyclo-hexan Không Cacbon tetra-hydrochlorit Không Cloroform Không Dicloro metan Không phân cực Không Không Tetra-hydrofuran Có Dietyl ete Không Etyl axetat Axeton Axetonitril Có Isopropanol...
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Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC MS) (2)

Xác định hóa chất bảo vệ thực vật carbamat trong một số loại rau quả bằng phương pháp sắc ký lỏng khối phổ (LC MS) (2)

Công nghệ thông tin

... carbendazim, propoxur, aminocarb, aldicarb… 1.2.2 Carbofuran [13] Carbofuran thuốc trừ sâu nhóm carbamat độc nhất, có tên 2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate, tên thương mại Furadan, ... dụng detector huỳnh quang để xác định carbofuran đề cập Phương pháp dựa phản ứng carbofuran với KMnO4 luminol môi trường kiềm nhẹ tạ thành hợp chất màu Carbofuran bị oxi hóa tạo thành anion 3-aminophthalate ... giảm tầm nhìn… Ở liều cao gây tử vong Chỉ cần uống 1ml carbofuran dẫn tới tử vong Theo WHO, mức hấp thụ hàng ngày cho phép (ADI) carbofuran 0,01mg/kg trọng lượng thể Liều gây chết trung bình chuột...
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Tài liệu Make-up Solvent Considerations for Prep and Semi-Prep LC/MS Mass-Based .... doc

Tài liệu Make-up Solvent Considerations for Prep and Semi-Prep LC/MS Mass-Based .... doc

Thời trang - Làm đẹp

... common DMSO solvent ion 2(DMSO) H+ from sample solvent PrednisoneMH+(359) and D MSO ( MH +78)+ adduct (438) at 20V and 65V shows that higher voltage drives off this adduct (MW 358, MH+ 359) Figures ... (e.g., phenols and carboxylic acids) tend to form Na+adducts, and the relative intensities tend to increase with cone voltage DMSO adduct is generally fairly weak and can be driven off with increased ... carbonyls This adduct can often form the base peak of the spectrum (Acetonitrile adduct MW + 42 from (MH+Acet)+) The absence of Na+ may be due either to the absence of this metal ion or to the...
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Xác định đồng thời dư lượng kháng sinh nhóm nitrofuran trong một số loại thực phẩm tươi sống trên địa bàn hà nội bằng phương pháp sắc ký lỏng khối phổ LC  MS MS

Xác định đồng thời dư lượng kháng sinh nhóm nitrofuran trong một số loại thực phẩm tươi sống trên địa bàn hà nội bằng phương pháp sắc ký lỏng khối phổ LC MS MS

Thạc sĩ - Cao học

... Preparation of polyclonal antibodies to a derivative of 1-amonihydantoin (AHD) and development of an indirect competitive ELISA for the detection of nitrofurantoin residue in water Journal of Agriculture ... Kennedy (2005), Depletion of four nitrofuran antibiotics and their tissue-bound metabolites in porcine tissues and determination using LC-MS/MS and HPLC-UV Food Additives and Contaminants, pp 405-414 ... “Measurement of four nitrofuran metabolites with elisa kits using multi-analyte reagents”, Randox life sciences 29 Sujittra Phongvivat, Bangkok, Thailand (2004), “Nitrofurans Case Study: Thailand’s...
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Tài liệu Lipases and Phospholipases in Drug Development pptx

Tài liệu Lipases and Phospholipases in Drug Development pptx

Sức khỏe giới tính

... Structure and Catalytic Mechanism of Mammalian Phospholipase D 56 Cellular Locations of PLD1 and PLD2 58 Post-translational Modification of PLD 59 Regulation of PLD1 and PLD2 60 Role of PIP2 60 Role of ... Glimepiride and Phosphoinositolglycans 290 Differences in Regulation of TAG Storage and Mobilization between Visceral and Subcutaneous Adipocytes 292 Up-/Down-regulation of Components of TAG Storage and ... Laugier, and Frédéric Carrière Introduction 195 Tissular and Cellular Origins of HGL and HPL 196 Hydrolysis of Acylglycerols by HGL and HPL 199 Substrate Specificity 199 Specific Activities of HGL and...
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Báo cáo khoa học: Nuclear localization of human spermine oxidase isoforms – possible implications in drug response and disease etiology pptx

Báo cáo khoa học: Nuclear localization of human spermine oxidase isoforms – possible implications in drug response and disease etiology pptx

Báo cáo khoa học

... recognizes both isoforms each of the isoforms of interest to confirm cellular localization In contrast to results observed with the homologous mouse SMO isoforms, each of the three human isoforms examined ... immunofluorescent staining of SMO in cells overexpressing each of the isoforms provided direct visualization and confirmation of protein localization 2800 without the possibility of contamination of one fraction ... amounts of each exogenous isoform were selected for further experiments, and designated SMO1, SMO4 and SMO5 (Fig 4A) Real-time PCR using isoform-specific primer pairs verified specific expression of...
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