LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "internal standard" as a keyword



Photo from wikipedia

A novel calibration strategy based on internal standard–spiked gelatine for quantitative bio-imaging by LA-ICP-MS: application to renal localization and quantification of uranium

Sign Up to like & get
recommendations! Published in 2020 at "Analytical and Bioanalytical Chemistry"

DOI: 10.1007/s00216-020-02561-4

Abstract: Mass spectrometry imaging (MSI) using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) has been employed for the elemental bio-distribution and quantification of uranium (U) in histological tissue sections of rodent kidneys. Kidneys were immediately… read more here.

Keywords: based internal; internal standard; spiked gelatine; quantification uranium ... See more keywords
Photo by thoughtcatalog from unsplash

Quantification of BTEX in Soil by Headspace SPME–GC–MS Using Combined Standard Addition and Internal Standard Calibration

Sign Up to like & get
recommendations! Published in 2017 at "Chromatographia"

DOI: 10.1007/s10337-017-3340-0

Abstract: There is a great demand for simple, fast and accurate methods for quantification of volatile organic contaminants in soil samples. Solid-phase microextraction (SPME) has a huge potential for this purpose, but its application is limited… read more here.

Keywords: internal standard; calibration; standard addition; soil ... See more keywords
Photo from wikipedia

Elemental analysis of vegetation samples by INAA internal standard method

Sign Up to like & get
recommendations! Published in 2020 at "Journal of Radioanalytical and Nuclear Chemistry"

DOI: 10.1007/s10967-020-07051-6

Abstract: The application of comparator instrumental neutron activation analysis (INAA) combined with the internal standard method (ISM) was considered to study vegetation samples by medium- and long-lived radionuclides. Fe content found by the relative method was… read more here.

Keywords: internal standard; standard method; analysis; method ... See more keywords
Photo from wikipedia

Old commercialized magnetic particles new trick: Intrinsic internal standard

Sign Up to like & get
recommendations! Published in 2021 at "Chinese Chemical Letters"

DOI: 10.1016/j.cclet.2021.07.049

Abstract: ABSTRACT Magnetic particles (MPs) are the most widely used commercialized engineering particles, which gained great success in various biological applications. Inspired by their intrinsic Fe isotope composition, we discovered a commercialized MPs-internal standard's novel function… read more here.

Keywords: old commercialized; internal standard; magnetic particles; particles new ... See more keywords
Photo by iranskids from unsplash

A rapid MALDI MS/MS based method for assessing saffron (Crocus sativus L.) adulteration.

Sign Up to like & get
recommendations! Published in 2019 at "Food chemistry"

DOI: 10.1016/j.foodchem.2019.125527

Abstract: We report on a sensitive and fast quantitative MALDI-MS/MS method used to assess saffron authenticity by direct analysis through the determination of picrocrocin as the saffron authenticity marker, and using curcumin as the non-isotopic isobaric… read more here.

Keywords: rapid maldi; internal standard; saffron; method ... See more keywords
Photo from wikipedia

An on‐spot internal standard addition approach for accurately determining colistin A and colistin B in dried blood spots using ultra high‐performance liquid chromatography–tandem mass spectrometry

Sign Up to like & get
recommendations! Published in 2017 at "Journal of Pharmaceutical and Biomedical Analysis"

DOI: 10.1016/j.jpba.2017.08.002

Abstract: Graphical abstract Figure. No Caption available. HighlightsA stable and accurate method was developed for colistin quantification from DBS.On‐spot internal standard addition was applied for accurate quantification.DBS provides benefit of stability for easily hydrolyzed colistin prodrug.Only… read more here.

Keywords: internal standard; colistin; standard addition; spot internal ... See more keywords
Photo by henry_be from unsplash

Post-column infused internal standard assisted lipidomics profiling strategy and its application on phosphatidylcholine research.

Sign Up to like & get
recommendations! Published in 2019 at "Journal of pharmaceutical and biomedical analysis"

DOI: 10.1016/j.jpba.2019.112956

Abstract: Various lipidomics studies have revealed the potential of using phospholipids as disease biomarkers for conditions such as Alzheimer's disease, cancer, and sepsis. Establishing accurate quantification methods for targeted phospholipid analysis is important for making these… read more here.

Keywords: internal standard; method; infused internal; quantification ... See more keywords
Photo by miguelherc96 from unsplash

Versatile and multiplexed mass spectrometry-based absolute quantification with cell-free-synthesized internal standard peptides.

Sign Up to like & get
recommendations! Published in 2021 at "Journal of proteomics"

DOI: 10.1016/j.jprot.2021.104393

Abstract: Preparation of stable isotope-labeled internal standard peptides is crucial for mass spectrometry (MS)-based targeted proteomics. Herein, we developed versatile and multiplexed absolute protein quantification method using MS. A previously developed method based on the cell-free… read more here.

Keywords: absolute quantification; internal standard; cell free; quantification ... See more keywords
Photo by marya_volk from unsplash

Green chromatographic methods for simultaneous determination of quetiapine and the co-administrated paroxetine in rat plasma with application to pharmacokinetic study

Sign Up to like & get
recommendations! Published in 2020 at "Microchemical Journal"

DOI: 10.1016/j.microc.2019.104317

Abstract: Abstract Newly established green TLC-densitometric and RP-HPLC methods were developed and validated for simultaneous determination of quetiapine (QUT) (an antipsychotic drug) and the co-administrated drug, paroxetine (PAR) (an antidepressant drug). Both drugs are widely prescribed… read more here.

Keywords: simultaneous determination; internal standard; determination quetiapine; method ... See more keywords
Photo by charlesdeluvio from unsplash

A proposal for bauxite quality control using the combined Rietveld – Le Bail – Internal Standard PXRD Method – Part 1: hkl model developed for kaolinite

Sign Up to like & get
recommendations! Published in 2018 at "Minerals Engineering"

DOI: 10.1016/j.mineng.2018.01.006

Abstract: Abstract In the bauxite industry – exploration, beneficiation and refinery – two main chemical parameters are used for the quality control: available alumina (AvAl 2 O 3 ) and reactive silica (RxSiO 2 ). Both… read more here.

Keywords: bail internal; internal standard; control; quality control ... See more keywords
Photo from wikipedia

Extended internal standard method for quantitative 1H NMR assisted by chromatography (EIC) for analyte overlapping impurity on 1H NMR spectra.

Sign Up to like & get
recommendations! Published in 2018 at "Talanta"

DOI: 10.1016/j.talanta.2018.03.003

Abstract: We devised a novel extended internal standard method of quantitative 1H NMR (qNMR) assisted by chromatography (EIC) that accurately quantifies 1H signal areas of analytes, even when the chemical shifts of the impurity and analyte… read more here.

Keywords: chromatography; eic; nmr; internal standard ... See more keywords