Chromatographic Methods
Chromatographic methods validation for analysis of small molecules in biological matrices .
... CHROMATOGRAPHIC METHODS VALIDATION FOR ANALYSIS OF SMALL MOLECULES IN BIOLOGICAL ...MATRICES. Chromatographic methods are commonly used for analysis of small molecules in different biological ...
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QuEChERS: a modern sample preparation method for pesticide multiresidue determination in food by chromatographic methods coupled to mass spectrometry.
... QuEChERS – A MODERN SAMPLE PREPARATION METHOD FOR PESTICIDE MULTIRESIDUE DETERMINATION IN FOOD BY CHROMATOGRAPHIC METHODS COUPLED TO MASS SPECTROMETRY. This review attempts to provide an updated overview of ...
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Validation of chromatographic methods for the determination of residues of veterinary drugs in foods.
... Con- siderando que para a determinação de resíduos de medicamentos veterinários em alimentos os métodos analíticos mais apropriados são os cromatográficos associados à espectrometria de [r] ...
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Validation of chromatographic methods: an experiment using HPLC and Green Chemistry in methylxanthines determination.
... Nos estudos de seletividade do método, para cada amostra, foram preparadas duas curvas analíticas: uma com as soluções de trabalho mis- tas na faixa de concentração de 2 a 30 μg mL -1 [r] ...
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14 (32.7 mg), which showed chromatographic peaks
... classical chromatographic methods affording eight original phragmalin limonoids (1-8) (Figure 1), in addition to the known limonoids 3β-O-detigloyl-3β-O-benzoyl- 12α-acetoxyswietephragmin D (9), ...
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Developing non-chromatographic strategies for biopharmaceuticals purification
... Non-chromatographic methods aim to reduce or even replace chromatographic operations in the purification pipeline, which tends to be hampered by the already implemented chromatographic ...
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J. Braz. Chem. Soc. vol.28 número2
... however, chromatographic methods for quantification of BZN in lipid nanostructures have not been developed ...a chromatographic analytical method to quantify BZN in NE and ...The ...
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Eclet. Quím. vol.34 número2
... been proposed for the oxidimetric titration of mi- noxidil [2,7-8]. In addition, several instrumental techniques have been described for minoxidil de- termination in matrixes such as serum and phar- maceutical products. ...
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Chromatographic design for the purification of recombinant human membrane COMT
... several chromatographic techniques have been used for MPs purification, as single step or in combination with other techniques ...affinity chromatographic methods, size-exclusion chromatography (SEC) ...
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Understanding the interaction between pDNA and different chromatographic supports
... long. Chromatographic methods like fontal analysis, isocratic elution and linear gradient elution can be one alternative to determine the adsorption equilibria with molecules like ...
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The component of Carica papaya seed toxic to A-aegypti and the identification of tegupain, the enzyme that generates it
... conventional chromatographic methods, including size exclusion chromatography over Sephadex G-25 and Superdex 75 columns, we identified the component as an enzyme that hydrolysed Bz-Arg-pNa and the specific ...
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Rev. Col. Bras. Cir. vol.39 número4
... (AHA). Methods: Methods: Methods: Methods: Methods: This was an exploratory, quantitative and qualitative research performed in the Youtube sharing site, using as keywords the ...
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Chromatographic detection of nitrofurans in foods of animal origin
... The linear quadrupole mass analyser is the most used system in nitrofurans analyses. This analyser consists of four hyperbolic or cylindrical rods that are placed side by side in a radial array. Opposite rods are charged ...
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Rev. Col. Bras. Cir. vol.38 número2 en v38n2a03
... locations. Methods Methods Methods Methods Methods: Patients who underwent total parotidectomy with auto implant (Ptx-AI) for secondary and tertiary hyperparathyroidism were evaluated ...
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Rev. Col. Bras. Cir. vol.39 número6
... trauma. Methods Methods Methods Methods Methods: Thirty-six female patients adult (18-62 years) candidates for elective laparoscopic cholecystectomy were randomly divided into three ...
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Rev. Col. Bras. Cir. vol.41 número6
... transplantation. Methods: Methods: Methods: Methods: Methods: In a prospective study, serum levels of follicle stimulating hormone (FSH), luteinizing hormone (LH), estradiol (E2) and ...
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Thin Layer Chromatographic Analysis of Beta-Lactam Antibiotics
... Three detection procedures were used; first with iodine vapors and then using in situ plate color reactions with iodine and ninhydrine, after an alkaline hydrolysis. A few iodine crystals were placed on the base of ...
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Rev. Col. Bras. Cir. vol.41 número4
... rooms. Methods Methods Methods Methods Methods: We analyzed mortality rates and survival as outcome variables, mechanism of injury, site of injury and anatomic injury as clinical ...
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Rev. Col. Bras. Cir. vol.42 número3
... apoptosis. Methods: Methods: Methods: Methods: Methods: This study consists in a prospective, controlled, randomized, single-blinded clinical trial, conducted with fifteen patients with ...
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Interpretative optimization of the isocratic ion chromatographic separation of anions
... In practical IC separations, finding an optimal mobile phase composition is usually the most difficult and time-consuming task. The traditional approach to this task is to perform an experiment by “trial-and-error” or by ...
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