research A liquid chromatography/tandem mass spectrometry method for determination of aristolochic acid‐I in rat plasma
A reliable method was developed to measure aristolochic acid-I in rat blood.
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450-480 / 1000+ resultsresearch Structural analysis of the outermost hair surface using TOF-SIMS with gas cluster ion beam sputtering
The hair's outermost surface has multiple layers of lipids and proteins.
research Analysis of cosmetic residues on a single human hair by ATR FT-IR microspectroscopy
Cosmetic residues on individual hairs can be identified and differentiated using ATR FT-IR microspectroscopy.
research LC‐MS/MS‐based method for long‐term steroid profiling in human scalp hair
A new method accurately measures long-term steroid levels in human hair.
research In-Situ Imaging Mass Spectrometry Analysis of Melanin Granules in the Human Hair Shaft
research ToF‐SIMS characterization of the lipid layer on the hair surface. I: the damage caused by chemical treatments and UV radiation
Chemical treatments and UV radiation severely damage the lipid layer on hair.
research A novel method for visualizing hair lipids at the cell membrane complex: Argon sputter etching/scanning electron microscopy1
The method shows how hair lipids form specific patterns and their roles in hair structure.
research Optimization of LC method for the determination of testosterone and epitestosterone in urine samples in view of biomedical studies and anti-doping research studies
Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.
research DEVELOPMENT AND VALIDATION OF A RP - HPLC METHOD FOR THE SIMULTANEOUS DETERMINATION OF SPIRONOLACTONE AND HYDROCHLOROTHIAZIDE IN PURE AND PHARMACEUTICAL DOSAGE FORM
A new accurate and reliable method was developed to measure Spironolactone and Hydrochlorothiazide together in medicines.
research Impact of electrical impedance spectroscopy on dermatologists' number needed to biopsy metric and biopsy decisions for pigmented skin lesions
Electrical impedance spectroscopy improves biopsy accuracy and efficiency for skin lesions.
research Capillary gas‐chromatographic determination of spermidine in hair lotion
The method effectively measures spermidine in hair lotions.
research Enzyme‐Instructed Self‐Assembly for Cellular Supramolecular Chemistry
EISA uses enzymes to create precise nanostructures in cells, offering new ways to design adaptive materials and therapies.
research Proteomic tools for the investigation of human hair structural proteins and evidence of weakness sites on hair keratin coil segments
Hair proteins have weak spots in their α-helical segments.
research Determination of some sex hormones in health supplements by liquid chromatography with tandem mass spectrometry
The method detected sex hormones in some health supplements, with one containing banned testosterone.
research Determination of Exemestane in Human Plasma by LC-MS-MS
The method effectively showed that the two exemestane preparations are bioequivalent.
research A genetic electrophoretic variant of high-sulfur hair proteins for forensic hair comparisons. II. Practical application of electrophoretic analysis of hair protein to forensic hair comparisons.
Electrophoresis can effectively analyze hair proteins for forensic use, even after cosmetic treatments and up to 2 years of weathering.
research Examining the Utility of LA-ICP-MS for Detection of Time-resolved Zinc Exposures and Determination of Hair Growth Rate
LA-ICP-MS effectively measures zinc, lead, and mercury in hair.
research Voltammetric reduction of finasteride at mercury electrode and its determination in tablets
New, cheaper method measures finasteride in tablets accurately and quickly.
research Gas chromatography/mass spectrometry based hair steroid profiling may reveal pathogenesis in hair follicles of the scalp
Analyzing hair with this method can help understand and monitor scalp conditions and treatment effects.
research Determination Method for Steroid 5α-Reductase Activity Using Liquid Chromatography/Atmospheric Pressure Chemical Ionization–Mass Spectrometry
A new method was developed to measure and assess the activity and inhibition of the enzyme steroid 5α-reductase.
research LC-MS/MS improves screening towards 21-hydroxylase deficiency
LC-MS/MS is more reliable than immunoassays for diagnosing 21-hydroxylase deficiency.
research A Novel Ion – selective Polymeric Membrane Sensor for Determining Thallium(I) With High Selectivity
The sensor accurately measures thallium ions in solutions with high selectivity.
research Development of Suspended Droplet Microextraction Method for Spectrophotometric Determination of Serum Iron
A new method accurately measures iron in small samples with high sensitivity and low cost.
![Synthesis of 5,6,6-[2H3]Finasteride and Quantitative Determination of Finasteride in Human Plasma at Picogram Level by an Isotope-Dilution Mass Spectrometric Method](/images/assets/0026b639-99a8-455a-a986-c39aa65abfa9/small/2087.jpg)
research Synthesis of 5,6,6-[2H3]finasteride and quantitative determination of finasteride in human plasma at picogram level by an isotope-dilution mass spectrometric method
Accurate method measures finasteride levels in human plasma using gas chromatography-mass spectrometry.
research Ultrahigh-Power Sonicator Lysis Enables Deep ProteomicProfiling of Hair Shafts for Fetal Growth Restriction Biomarker Discovery
A new method helps find proteins in hair to identify fetal growth issues.
research Use of rotary echoes in 2 H
A new method accurately measures molecular movement without complex modeling.
research A green light emitting turn-on ionic liquid-based nano-optode for selective and sensitive detection of dextran sulphate
A new fluorescent material can detect dextran sulfate sodium, turning green when present, useful for forensic and environmental monitoring.
research Determination of estrone and 17β-estradiol in human hair by gas chromatography–mass spectrometry
Estrone and 17β-estradiol levels in hair differ between males and females.
research Gas Chromatography Tandem Mass Spectrometry for Biomarkers of Alcohol Abuse in Human Hair
A new method quickly detects alcohol use from hair in under an hour.
research Rapid determination and quantification of hair-growth compounds in adulterated products by ultra HPLC coupled to quadrupole-orbitrap MS
About 21% of tested hair loss supplements contained illegal synthetic drugs.