solid liquid extraction determination of nitrite in hot dogs
Determination of EDTA in Water Samples by SPE-Gas Chromatography/Mass Spectrometry
... tap water at concentrations of 0.1 mg/L (1/5 of EDTA standard value in drinking water) and 0.01 mg/L (1/50 of EDTA standard value in drinking water) and subsequent extraction and derivatization ... Fujishima H., Yamamoto A., Inoue Y and Hayakawa K (2009) Study of solidphase extraction for the determination of sequestering agents in river water by high-performance liquid chromatography, J ... for the Examination of Water Occurrence of EDTA in river water samples from three regions of Japan was examined EDTA was detected in ten of thirteen river water samples A high level of EDTA was...
- 7
- 689
- 0
Báo cáo khoa học:Spectrophotometric Determination of Allopurinol in Tablet Formulation ppt
... oxidation of hypoxanthine and xanthine resulting in the production of uric acid, the product of human purine metabolism.2 In addition to block uric acid production, inhibition of xanthine oxidase ... Spectrophotometeric determination of some anti-inflammatory agents using Nbromosuccinimide Analyst, 111(1), 45–481 Guven, K.C & Ozol, T (1980) Spectrophotometeric determination of allopurinol Sci ... rapid determination of allopurinol in pharmaceutical formulation Thus, the developed method was applied for the analysis of allopurinol in tablet (obtained from Highnoon Company, Iraq) containing...
- 9
- 299
- 1
Hollow fiber protected microextraction for the determination of pollutants in complex matrices
... combined with liquid- phase microextraction (LPME) is a kind of solvent microextraction It includes two-phase liquid- liquid microextraction (LLME) and three-phase liquid- liquid -liquid microextraction ... Head space solid- phase microextraction InPy Indeno[1,2,3-c,d]pyrene LLE Liquid- liquid extraction LLLME Liquid- liquid -liquid microextraction LPME Liquid- phase microextraction LODs Limits of detection ... the determination of OCPs in milk 28 CHAPTER Determination of Pollutants in Soil 4.1 Determination of polycyclic aromatic hydrocarbons in soil by hollow fiber-protected liquid- phase microextraction...
- 79
- 290
- 0
Determination of QuinoloneAntibiotics in Bovine Liver UsingAgilent SampliQ QuEChERS Kits byLC/MS/MS
... for the analysis of 11 quinolone antibiotics in bovine liver: pipemidic acid, ofloxacin, ciprofloxacin, danofloxacin, lomefloxacin, enrofloxacin, sarafloxacin, cinoxacin, oxolinic acid, nalidixic ... Ofloxacin Ofl i Cinoxacin Ciprofloxacin Danofloxacin Oxolinic acid N lidi i acid id Nalidixic Chemical structures of the quinolone antibiotics investigated in this study Lomefloxacin Flumequine Fl ... Lomefloxacin, Enrofloxacin, Sarafloxacin, Cinoxacin, Oxolinoc acid, 10 Nalidixic acid, 11 Flumequine Linearity and limit of quantification (LOQ) Table The linear calibration range for all of the quinolone...
- 10
- 578
- 0
Báo cáo khoa học: "An investigation on the presence of Chlamydiaceae in Swedish dogs" docx
... one of the dogs [13] In an experimental setting, inflammatory changes in the prostatic gland have been induced by injecting C trachomatis directly into the prostatic gland [15] The dogs ceased ... chlamydial infection and genital tract disease has not been reported in dogs, although small litter sizes were reported in a colony of dogs in which Cp psittaci was detected in a sample from one of the ... seroprevalence in a colony of experimental animals In a German study, using an enzyme-linked immunosorbent assay (ELISA), 20% of the dogs were seropositive for Cp psittaci: 19.8% in a population of healthy...
- 4
- 349
- 1
DETERMINATION OF ORGANIC COMPOUNDS IN DRINKING WATER BY LIQUID-SOLID EXTRACTION AND CAPILLARY COLUMN GAS CHROMATOGRAPHY/MASS SPECTROMETRY pdf
... provides procedures for determination of organic compounds in finished drinking water, source water, or drinking water in any treatment stage The method is applicable to a wide range of organic compounds ... surrogate in µg/L in the water sample Ax = integrated abundance of the quantitation ion of the analyte in the sample Ais = integrated abundance of the quantitation ion of the internal standard in the ... tune and initial calibration at the beginning of each 12-hour work shift during which analyses are performed using the following procedure 10.3.1 Inject a µL aliquot of the ng/µL solution of DFTPP,...
- 60
- 528
- 0
báo cáo hóa học: " Method optimization and validation for the simultaneous determination of arachidonic acid metabolites in exhaled breath condensate by liquid chromatography-electrospray ionization tandem mass spectrometry" doc
... immunoassay kit to determine inflammatory marker in EBC Il'Yasova et al [18] report about a method comparison of the determination of an isoprostane derivative in urine using GC/MS and ELISA With ... determinations of inflammatory markers which serve as biological marker, differentiating between increased concentration levels in patients from lower endogenous concentration levels in EBC in ... performed in ammonium acetate buffer 10 mM Thus, calibration curves were obtained by spiking increased amounts of analytes in mM ammoniumacetate and in pooled EBC All calibration curves obtained in...
- 8
- 458
- 0
Báo cáo khoa học: "Determination of Roxithromycin by Liquid Chromatography/ Mass Spectrometry after Multiple-Dose Oral Administration in Broilers" pdf
... Determination of Roxithromycin by Liquid Chromatography/Mass Spectrometry after Multiple-Dose Oral Administration in Broilers 39 Ta ble Concentration of roxithromycin in various tissues obtained ... antibiotics in edible tissues of food-producing animals The MRLs of erythromycin and tylosin are 0.1 ㎎/kg in cattle and pigs In case of poultry, those are 0.125 ㎎/kg for erythromycin and 0.1 ㎎ ... determination of roxithromycin in broiler tissues The optimal withdrawal time of roxitrhomycin for edible tissues of broiler is suggested to be days after treatment of roxithromycin mixed with drinking...
- 5
- 263
- 0
DETERMINATION OF THE APPROPRIATE CONTENT OF CALCIUM NITRITE AS A CORROSION INHIBITOR IN REINFORCED CONCRETE docx
... inhibition in extract of cement water containing Cl-: • In H0 extract, steel is maintained in passive state and not corroded • The extract containing Cl-: corrosion rate is continuously increased ... Figure 12 Corrosion inhibition ability of CN in concrete grade M30 containing 2,4 kg Cl-/ m3 12 15 18 21 24 Figure 13 Corrosion inhibition ability of CN in concrete grade M50 containing 1,2 kg Cl-/ ... content of CN is defined as [Cl-]/[NO2-] @ Conclusion CN is an effective inhibitor to enable minimizing steel corrosion in concrete Determine the appropriate content of calcium nitrite as Extract of...
- 26
- 274
- 0
Simultaneous determination of sildenafil, vardenafil and tadalafil as forbidden components in natural dietary supplements for male sexual potency by high performance liquid chromatography–electrospray ionization
... constituents contained in samples Sample Plant sources Oral liquid preparation Oral liquid preparation Oral liquid preparation Oral liquid preparation Oral liquid preparation Wine Wine Wine Beverage ... analysis of samples Herbs are very complex because they contain many kinds of compounds The samples examined in present work included barbary wolfberry fruit, ginseng root, Chinese magnoliavine fruit, ... Chinese magnoliavine fruit, barbary wolfberry fruit, ginseng root Barbary wolfberry fruit, Indian bread Ginseng root, Chinese magnoliavine fruit Lychee seed LC 4000 module Samples for examination...
- 7
- 368
- 0
Extraction, determination and metabolic profiling of alkaloids in traditional chinese medicines by modern analytical techniques
... and Determination of Pyrrolizidine Alkaloids in Traditional Chinese Medicine with Modern Analytical Techniques 41 Chapter Determination of Senkirkine and Senecionine in Tussilago Farfara using ... 4.3.1.2 Determination of metabolites in rat livers samples by GC/MS109 4.3.1.3 Determination of metabolites in rat urine samples by 1H NMR 113 4.3.1.4 Determination of metabolites in rat urine samples ... analysis of sinomenine from Sinomenium acutum [50], berberine from rhizome of Coptis chinensis Franch [51], triterpenoids in fruiting bodies of Ganoderma lucidum [52], and saponins from Ginseng...
- 191
- 352
- 0
Liquid phase microextraction for the determination of acidic drugs and beta blockers in water samples
... important role in maintaining the integrity of the extraction system by ensuring proper organic solvent immobilization and preventing direct mixing of donor phase with acceptor phase in three-phase ... of ion-pairing reagent on extraction Concentration of HCl on extraction recovery Effect of stirring speed on extraction efficiency Effect of extraction time on extraction efficiency Extraction ... Salting out effect on extraction efficiency for acidic APIs Extraction yield vs stirring speed of NSAIDs and clofibric acid Two-phase LPME extraction profile vs extraction time of NSAIDs and clofibric...
- 74
- 277
- 0
Behavior of Nitrite Oxidizers in the Nitrification/Denitrification Process for the Treatment of Simulated Coke-Oven Wastewater
... activities of nitrite oxidizing bacteria - 31 - Journal of Water and Environment Technology, Vol.5, No.1, 2007 Figure Behavior of nitrate and nitrite at the end of the aerobic tank Behavior of Nitrobacter ... quantitative In order to more accurately determine the behavior of nitrifiers, a quantitqative PCR method (Quanching Primer-PCR) for the determination of Nitrobacter species was developed by using the ... Journal of Water and Environment Technology, Vol.5, No.1, 2007 experiment, the authors observed the accumulation of nitrite instead of nitrate in the nitrification step In an attempt to...
- 8
- 572
- 0
Experimental study of passive cooling of building facade using phase change materials to increase thermal comfort in buildings in hot humid areas
... Assistant Professor at the Department of Civil engineering, Thiagarajar college of Engineering, Madurai, Tamilnadu, India His field of research is strengthening of RCC structures His areas of interest ... college of Engineering, Madurai, Tamilnadu, India Her field of research is Thermal Performance Evaluation of residential buildings of hot humid Regions of India She is a Post-Graduate in Landscape ... resulting in rapid swings of internal temperature Optimized selection of building materials for making the external envelop also plays an important role in achieving thermal comfort in buildings,...
- 10
- 728
- 0
Tài liệu Báo cáo " Determination of the annual beta dose by meaming beta activity using the liquid scintillation technique " ppt
... determine the correct PDD (Pulse Decay Discriminator) setting The optimum setting is the setting where there is equal and minimum spill of alpha pulses into the beta MCA and beta pulses into the ... gamma and beta dose of pottery in TL dating by quartz inclusion technique The obtained results are presented in Table Table The annual dose in pottery for dating by quartz inclusion technique ... rate (µR/h) Water in the pore of pottery or in the soil absorbs some parts of the radiation that would otherwise reach the thermoluminescent grains Alternatively, on the infinite matrix basis,...
- 6
- 688
- 0
Báo cáo khoa học: Kinetic and mechanistic characterization of Mycobacterium tuberculosis glutamyl–tRNA synthetase and determination of its oligomeric structure in solution pptx
... exceptions in that activation of the amino acid requires the presence of the cognate tRNA [2,4] In these aaRS the binding of tRNA induces an ATP productive binding mode [5] GluRS are also distinguished ... the discriminating behaviour of Mt-GluRS in E coli Studies on Tt-GluRS indicated that discriminating and nondiscriminating GluRS can be distinguished on the basis of the presence of a specic ... of [32P]ATP was observed In kinetic experiments, the rate of formation of [32P]ATP increased at increasing concentrations of [32P]PPi (Fig 4) As expected from the observed inhibitory effect of...
- 20
- 497
- 0
DETERMINATION OF VOLATILE ORGANIC COMPOUNDS (VOC) IN CONSUMER PRODUCTS AND REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS doc
... determine the final VOC content for the product Method 310 is also used to determine the percent by weight of the ROCs contained in aerosol coating products, for the purpose of determining compliance ... provided in section 7.0 3.3.3 Determination of ammonium content using ASTM D 1426-98 or US EPA Method 300.7 3.3.4 Determination of ketones and alcohol content using NIOSH Method 1400 3.3.5 Analysis of ... analysis of samples to determine the weight percent of total volatile material, using US EPA Reference Methods 24/24A, ASTM D 2369-01 5.3.2 Determination of sample water content For determination of...
- 23
- 830
- 0
Growth of amorphous silicon nanowires via a solid–liquid–solid mechanism
... the substrate liquid ŽSL interface into the liquid droplets, and growth of SiNWs through the liquid wire ŽLS interface; Žd final state of SiNW growth The smooth surface of the original substrate ... surface of the substrate and the a-SiNW film, instead of being attached at the free tip of the SiNWs One question about SLS growth is what is the driving force for such a continuous diffusion of Si ... by the well-known vapor liquid solid ŽVLS mechanism, in which the vapor phase plays an important role in the growth of the SiNWs The central idea behind VLS growth of SiNWs is that the catalysts...
- 5
- 503
- 2
Controlled growth of oriented amorphous silicon nanowires via a solid–liquid–solid (SLS) mechanism
... An interesting phenomenon is that the nanowire ÿlm was found chapped in a network of white-contrasted lines The inclined view at a crossover point of the white in Fig 2(b) revealed the white lines ... that the solidiÿed Si–Ni nano particles were visible between the surface of the substrate and the a-SiNW ÿlm, instead of being attached at the free tip of the SiNWs The SiNWs are interesting to ... source via a solid liquid solid mechanism by heating They have uniform length and diameter The growth is explained by solid liquid solid model This synthesis method of oriented SiNWs is simple...
- 5
- 386
- 0
Báo cáo "DETERMINATION SULPHONAMIDES RESIDUES IN FOOD BY HIGH PERFOPvMANCE LIQUID CHROMATOGRAPHY PART 2. SEPARATION AND QUANTIFICATION SULFAGUANIDINE, SULFAMETHOXYPYRIDINE, SULFADOXINE AND SULFAMETHOXAZONE IN ANIMAL FOODSTUFFS AND FOOD PRODUCTS " pdf
... Journal of Chromatography A 1032 (2004) 2329 Che-Yi Lin, Shang-Da Huang - Application of liquid- liquy microextraction and high performance liquid chromatography for the determination of sulfonamides ... Marcel Dckker Inc 2000 pp 621-693 Ivan Pecorelli, Rita Bibi, Laura Fioroni, Roberta Galarini - Validation of a confirmatorymethod for determination of sulphonamides in muscle according to the European ... san xuat, kinh doanh thuy san, Quyet djnh so 07/2005/QD-BTS 22/02/2005 ciia Bd Thuy san Ming-Ren S Fuh, Su-Yi Chu - Quantitative determination of sulfonamide in meat by solid- phase extraction...
- 9
- 441
- 0
- 2development of methods for the determination of sterols in vegetable oils
- determination of cyanobacteria in the laboratory
- current analytical methods for the determination of methylxanthines in foods
- current methods for the determination of methylxanthines in the biological fluids
- the determination of phosphates in environmental samples by ion chromatography
- applications of ion chromatography to the determination of phosphates in environmental matrices
- determination of isocyanates in air
- elisa for quantitative determination of igg in purified anti dt antibody
- determination of pollutants in foods
- the determination of age in subadult from the rib cortical microstructure
- detection identification and determination of mycotoxins in foods and seeds
- the gravimetric determination of sulfate in a commercial unknown
- the gravimetric determination of iron in a commercial unknown
- determination of protein in macaroni by the kjeldahl method
- zou xiang feng wang yuan liu jin wang jia song hui gao jie han 2007 determination of sulphonamides in animal tissues by high performance liquid chromatography with pre column derivatization of 9 fluorenylmethyl chloroformate j
Tìm thêm: khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25