research Determination of steroid hormones in human hair as a retrospective biomarker with HPLC-MS/MS
A new method accurately measures long-term hormone levels in hair.
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390-420 / 1000+ resultsresearch Carbon quantum dots applied to the chemical sensing of cobalt ions and methylcobalamin
Carbon Quantum Dots can effectively detect cobalt ions and methylcobalamin in water.
research Liquid chromatography-mass spectrometry for simultaneous determination of spironolactone and canrenone in plasma samples
A method was found to accurately measure spironolactone and canrenone in blood samples using liquid chromatography-mass spectrometry.
research Improving stable isotopic interpretations made from human hair through reduction of growth cycle error
The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
research Simultaneous determination of seven prohibited substances in cosmetic products by liquid chromatography–tandem mass spectrometry
The method effectively identifies and measures seven banned substances in cosmetics.
research Biology and Detection of Pregnanes During Late Gestation in the Mare
LC-MS/MS is essential for accurately detecting pregnanes in pregnant mares.
research Simultaneous LC-MS/MS quantification of glucocorticoids, melatonin and its metabolites in hair
The new method can measure sleep-related hormones in hair effectively and could help track long-term sleep patterns.
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 Solid-Phase Microextraction and Related Techniques in Bioanalysis
research Comparison of methanol and isopropanol as wash solvents for determination of hair cortisol concentration in grizzly bears and polar bears
Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
research STABILITY INDICATING AN LC-ESI-MS/MS METHOD FOR THE QUANTIFICATION OF MINOXIDIL IN PHARMACEUTICAL DOSAGE FORMS
The method accurately measures Minoxidil in drugs and is reliable for routine 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 Liquid Chromatography-Mass Spectrometry-Based In Vitro Metabolic Profiling Reveals Altered Enzyme Expressions in Eicosanoid Metabolism
The method reliably profiles eicosanoids and shows epitestosterone reduces their levels, similar to common anti-inflammatory drugs.
research Studies on the persistence of estradiol benzoate and nortestosterone decanoate in hair of cattle following treatment with growth promoters, determined by ultra-high-performance liquid chromatography–tandem mass spectrometry
Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
research DEVELOPING AND VALIDATING AN HPLC METHOD TO QUANTIFY SIMULTANEOUSLY DUTASTERIDE AND THEIR RELATED MOLECULES (DUTASTERIDE ACID, 2,5 BIS- (TRI FLUORO METHYL)-ANILINE AND DUTASTERIDE 17 α-EPIMER) IN CAPSULES
A reliable method was created to measure dutasteride and related molecules in capsules.
research Colorimetric assay for γ-glutamyl transpeptidase
The document concludes that measuring γ-glutamyl transpeptidase activity is more accurate with a higher substrate concentration and using diluted acetic acid to stop the reaction.
research Determination of cantharidin,nitrogen mustard and minoxidil in nurturing hair products by liquid chromatography-tandem mass spectrometry
research Apparent Hyperandrogenemia Due to Immunoassay Interference Resolved by Liquid Chromatography–Tandem Mass Spectrometry
False high testosterone levels were corrected using a more accurate test.
research HPTLC assay of nicotine and cotinine in biological samples
A new method effectively measures nicotine and cotinine in blood and urine for forensic analysis.
research Picogram determination of finasteride in human plasma and semen by high-performance liquid chromatography with atmospheric-pressure chemical-ionization tandem mass spectrometry
Method detects finasteride in plasma and semen with high sensitivity and accuracy.
research IONIC HAIR PROFILES OF STUDENTS FROM THE MIDDLE EAST AND MOSCOW REGION
Students from the Middle East and Moscow have different hair element levels due to their environments.
research Sex Steroids, Precursors, and Metabolite Deficiencies in Men With Isolated Hypogonadotropic Hypogonadism and Panhypopituitarism: A GCMS-Based Comparative Study
Men with isolated hypogonadotropic hypogonadism have partial steroid deficiencies, while those with panhypopituitarism have severe deficiencies.
research Simultaneous RP-HPLC-DAD determination of dansyl amino acids in chemically treated human hair
A new method accurately measures amino acids in treated hair, showing bleaching reduces amino acids while protein treatments increase them.
research Determination of dichloromethane and chloroform in Finasteride by SPME-GC
The method accurately measures dichloromethane and chloroform in finasteride.
research Carbon, nitrogen, and sulfur elemental and isotopic variations in mouse hair and bone collagen during short-term graded calorie restriction
Calorie restriction changes the elemental and isotopic makeup of mouse hair and bone.
research Determination of illegal adulteration of dietary supplements with synthetic hair-growth compounds by UPLC and LC-Q-TOF/MS
The new method accurately detects illegal hair-growth drugs in dietary supplements.
research Chromatographic Method for Simultaneous Quantification of Gemcitabine and Olaparib Recovered from Isolated Pancreatic Tissue
A reliable method was developed to measure gemcitabine and olaparib in pancreatic tissue, aiding pancreatic cancer treatment.
research How storage post sampling influences the stability of sebum when used for mass spectrometry metabolomics analysis?
Sebum samples remain stable under various storage conditions, making them suitable for remote and at-home testing.
research Determination of 19 illegally added chemical ingredients in hair loss prevention cosmetics by ultra-performance liquid chromatography-quadrupole-time of flight mass spectrometry
A new method can quickly and accurately detect illegal chemicals in hair loss products.
research Preparation of3H-labelled testosterone metabolites
The conclusion is that tritium-labeled testosterone metabolites can be made and are better converted into dihydrotestosterone in skin cells than in prostate tissue.