lichropur™ high purity salts for hplc and lc-ms analysis

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Showing 1-9 of 9 results for "lichropur™ high purity salts for hplc and lc-ms analysis" within Papers

Isolation and identification of myo-inositol crystals from dragon fruit (Hylocereus polyrhizus).

Ow Phui San Rebecca et al.

Molecules (Basel, Switzerland), 17(4), 4583-4594 (2012-04-19)

Crystals isolated from Hylocereus polyrhizus were analyzed using four different approaches--X-ray Crystallography, High Performance Liquid Chromatography (HPLC), Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS) and Nuclear Magnetic Resonance (NMR) and identified as myo-inositol. The X-ray crystallography analysis showed that the unit-cell

Xanthohumol C, a minor bioactive hop compound: Production, purification strategies and antimicrobial test.

Simon Roehrer et al.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1095, 39-49 (2018-07-28)

Hop has been attracting scientific attention due to its favorable bioactivity properties. It is thus desirable to relate these properties to the specific hop compounds and extract these compounds in highly purified form in order to enhance the effect. The

Mitochondrial proteomic analysis reveals deficiencies in oxygen utilization in medullary thick ascending limb of Henle in the Dahl salt-sensitive rat.

Nadezhda N Zheleznova et al.

Physiological genomics, 44(17), 829-842 (2012-07-19)

The renal medullary thick ascending limb (mTAL) of the Dahl salt-sensitive (SS) rat is the site of enhanced NaCl reabsorption and excess superoxide production. In the present studies we isolated mitochondria from mTAL of SS and salt-resistant control strain SS.13(BN)

An efficient HPLC method for the analysis of isomeric purity of technetium-99m-exametazime and identity confirmation using LC-MS.

D Vanderghinste et al.

Journal of pharmaceutical and biomedical analysis, 32(4-5), 679-685 (2003-08-06)

99mTc-exametazime (99mTc-d,l-HMPAO, 99mTc-d,l-hexamethylpropyleneamine oxime) is a neutral rather unstable complex of short-lived 99mTc (t(1/2)=6 h) with the d,l-isomer (mixture of D,D- and L,L-isomers) of a bis-amine bis-oxime tetraligand. It is widely used for measurement of regional cerebral perfusion in nuclear

Comparison of DAD and FLD Detection for Identification of Selected Bisphenols in Human Breast Milk Samples and Their Quantitative Analysis by LC-MS/MS.

Tomasz Tuzimski et al.

Journal of AOAC International, 103(4), 1029-1042 (2020-11-27)

Determination of bisphenols released from packaging material is undoubtedly a difficult and tricky task, requiring the chemical analyst to develop an individual approach to obtain reliable analytical information. QuECHERS (Quick, Easy, Cheap, Effective, Rugged, and Safe)/dispersive solid-phase extraction (d-SPE) technique

Highly sensitive quantification of 7alpha-hydroxy-4-cholesten-3-one in human serum by LC-ESI-MS/MS.

Akira Honda et al.

Journal of lipid research, 48(2), 458-464 (2006-11-10)

We describe a highly sensitive and specific method for the quantification of serum 7alpha-hydroxy-4-cholesten-3-one (C4), which has been used as a biomarker for bile acid biosynthesis. This method is based upon a stable isotope dilution technique by liquid chromatography-tandem mass

Determination of paraquat in vegetables using HPLC-MS-MS.

Tingting Zou et al.

Journal of chromatographic science, 53(2), 204-209 (2014-05-23)

A simple, sensitive, reliable and economical method was developed for the determination of paraquat (a widely used herbicide) in four edible vegetables (cabbage, lettuce, spinach and Chinese cabbage) using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS-MS). The samples were extracted with

Rapid screening and detection of XOD inhibitors from S. tamariscina by ultrafiltration LC-PDA-ESI-MS combined with HPCCC.

Jing Wang et al.

Analytical and bioanalytical chemistry, 406(28), 7379-7387 (2014-09-23)

Xanthine oxidase (XOD) catalyzes the metabolism of hypoxanthine and xanthine to uric acid, the overproduction of which could cause hyperuricemia, a risk factor for gout. Inhibition of XOD is a major treatment for gout, and biflavonoids have been found to

Aptamer-based fluorescent screening assay for acetamiprid via inner filter effect of gold nanoparticles on the fluorescence of CdTe quantum dots.

Jiajia Guo et al.

Analytical and bioanalytical chemistry, 408(2), 557-566 (2015-11-02)

This paper reports a novel aptamer-based fluorescent detection method for small molecules represented by acetamiprid based on the specific binding of aptamers with acetamiprid, and the inner filter effect (IFE) of gold nanoparticles (AuNPs) on the fluorescence of CdTe quantum

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