Determination of trilostane by hplc

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August undefined, 2024

WebA high-performance liquid chromatographic (HPLC) method for the determination of triclosan and triclocarban in cosmetic products was developed. Triclosan and triclocarban quantities in 168 of cosmetics were investigated and statistical analyzed with this method. The optimal condition are as follows: An Agilent SB-C8 analytical column (250 × 4. ... WebTrilostane inhibits synthesis of cortisol in dogs. It is a competitive inhibitor of 3-beta-hydroxysteroid dehydrogenate, which will interfere with the steps that lead to cortisol …

Simultaneous Determination of Potassium Sorbate, Sodium …

WebJan 1, 1984 · For quantitative analysis and for monitoring separations the mobile phase consisted of methanol--O.1 M formic acid (1:1) at a flow-rate of 2 ml/min. Both column … WebJun 1, 1991 · Abstract. A simple high-performance liquid chromatographic (HPLC) method for assaying trilostane, a synthetic steroid, and one of its metabolites, ketotrilostane, in … shs sales and marketing logo

Chromatographic separation of trilostane mixture - Google

WebBrown et al. 4 describe an HPLC method for the determination of Trilostane and its 17-keto analogue using a silica-based Partisil column and a silica-based Phenyl/Corasil … WebMay 7, 2012 · Figure 2 shows a typical chromatogram of a working sample solution obtained under the optimized HPLC conditions described in the preceding. The amino-bonded silica packing has been widely used for the separation of carbohydrates. When used in the current study, it provided the required separation of sorbitol and glycerol from each other and … WebIn reversed-phase HPLC, fatty acids are separated both by chain length and by degree of unsaturation. The first double bond reduces the effective chain length by a little less than 2 carbon units, so an 18:1 fatty acid elutes just after 16:0. A second and further double bonds have smaller effects on retention so an 18:3 fatty acid elutes just ... theory test signs and meanings

High-performance liquid chromatographic analysis of trilostane …

Determination of the concentrations of trilostane and ... - PubMed

WebOct 17, 2016 · The method was validated and all the factors influencing the separation and analysis were checked experimentally. The method ensures the separation of the five above-mentioned compounds with good resolutions in a relatively short run time. Accordingly, the proposed HPLC method can be applied for in-process and finished … WebJan 1, 2011 · A new method for analysis of benzene, toluene, and xylene (BTX) using High Performance Liquid Chromatography-UV detection (HPLC-UV) is described and compared to the gas chromatography (GC) method. shs sample researchWebJan 2, 2024 · For HPLC analysis, after grounding, the sample of tea, granule or extract was first dissolved in methanol to make a solution at the concentration of 25 mg/mL, sonicated for 20 min. and then centrifuged. Syrup was cleaned up using a Sep-Pak cartridge. Supernatant was collected and an aliquot was injected into HPLC. theory test road signs quiz

"WebTrilostane has an IC 50 of ∼ 1.3 μM in inhibiting cortisol production from guinea pig dispersed adrenal cells stimulated with corticotrophin; ... A meta-analysis of 82 patients … " - Determination of trilostane by hplc

Determination of trilostane by hplc

High-performance liquid chromatographic determination …

WebThus, plasma analysis is required to support in vivo studies in rats designed to maximise absorption. Two high-performance liquid chromatographic (HPLC) assays for trilostane … WebJun 14, 1991 · The aim of the present study was therefore to develop a sensitive and specific HPLC assay method for the determination of plasma levels of trilostane and …

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WebJul 1, 2012 · Acceptance criteria for trilostane content were set at 90–105% LC, which is consistent with current United States Pharmacopoeia criteria for shelf life specification of a drug product. The 0 mg control batches were removed from further evaluation after determination of 0% trilostane content and were not included in the statistical analysis. WebWater samples were collected from each tank every 2–3 days (9/21 days in total) and trilostane concentrations in the water were measured by high-performance liquid chromatography (HPLC) with diode array detection (254 nm; Model 1100; Agilent Techologies, Santa Clara, CA). The HPLC was equipped with a Zorbax SB-C18 column …

WebIn view of the problems described in the Reference Example in relation to the degradation of Trilostane on a silica-based stationary phase, an improved HPLC system, described … WebGas chromatography (GC) and high-performance liquid chromatography (HPLC) coupled to different detectors, and in combination with different sample extraction methods, are most widely used for analysis of triazine herbicides in different environmental samples. Nowadays, many variations and modificati …

WebFeb 27, 2015 · A high-performance liquid chromatography–fluorescence detection (HPLC-FLD) method was developed and validated for choline quantification in foods. Samples were extracted by homogenizing in chloroform/methanol/water and hydrolyzing in HCl-acetonitrile. Choline was derivatized using 1-naphthyl isocyanate and quantified by HPLC … WebMar 6, 2016 · The optimized HPLC method was validated, and based on the results obtained, it is found that the proposed method is linear, precise and accurate. Validation data also demonstrate that this method can be used in routine analysis of potassium sorbate, sodium benzoate, quinoline yellow and sunset yellow in lemonades and lemon …

WebAug 15, 2024 · The determination of caffeine content in coffee products is routinely done by RPLC in commercial applications in order to guarantee purity and quality of ground …

WebObjective: To determine whether trilostane or ketotrilostane is more potent in dogs and determine the trilostane and ketotrilostane concentrations that inhibit adrenal gland cortisol, corticosterone, and aldosterone secretion by 50%. Sample: 24 adrenal glands from 18 mixed-breed dogs. Procedures: Adrenal gland tissues were sliced, placed in tissue … shss bell scheduleWebSep 28, 2024 · Cannabis Analysis by HPLC; ... HPLC Method for Analysis of Trilostane 2024-09-28. View Application Condition; Column: Newcrom R1, 4.6×100 mm, 5 µm, … shs sai home schoolWebTrilostane ((4α,5α,17β)-3,17-dihydroxy-4,5-epoxyandrost-2-ene-2-carbonitrile); >= 98% HPLC; Trilostane has been used to evaluate its capability to regulate the sex-dependent differences in the lipopolysaccharide (LPS)-induced inflammatory responses of astrocytes; Trilostane inhibits the production shss booklistWebA trilostane assay was developed for analysis. Trilostane (Vetoryl) capsules were used as clinical controls. Forty-four medication packets containing trilostane (Vetoryl), prepared … theory tests online 2015WebJun 1, 1991 · A simple high-performance liquid chromatographic (HPLC) method for assaying trilostane, a synthetic steroid, and one of its metabolites, ketotrilostane, in small volumes of rat plasma has been developed. A single liquid-liquid extraction was used to isolate the two compounds from acidified plasma prior to the quantitative analysis. shss boltWebJun 14, 1991 · A simple high-performance liquid chromatographic (HPLC) method for assaying trilostane, a synthetic steroid, and one of its metabolites, ketotrilostane, in small volumes of rat plasma has been developed. A single liquid-liquid extraction was used to … theory tests practice freeWebJul 30, 2024 · Analytical method for the quantitative determination of EDTA in Cosmetics has been developed and validated by high-performance liquid chromatography (HPLC) with UV detection at wavelength 280 nm. shss castlegar bc