research Matrix Effect in Quantitative LC/MS/MS Analyses of Biological Fluids: A Method for Determination of Finasteride in Human Plasma at Picogram Per Milliliter Concentrations
Method detects finasteride in plasma at very low concentrations.
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research Determination of Minoxidil by Bleaching the Permanganate Carrier Solution in a Flow-Based Spectrophotometric System
The method quickly and accurately measures minoxidil in drugs, comparable to standard techniques.
research Analysis of Hormone Antagonists in Clinical and Municipal Wastewater by Isotopic Dilution Liquid Chromatography Tandem Mass Spectrometry
Researchers developed a method to detect hormone-blocking drugs in wastewater and found them in Beijing's sewage, suggesting they can survive sewage treatment.
research Electrochemical Determination of Minoxidil in Different Pharmaceutical Formulations by Flow Injection Analysis
Method accurately measures minoxidil concentration in medicines.
research Analytical Method for the Biomonitoring of Bisphenols and Parabens by Liquid Chromatography Coupled to Tandem Mass Spectrometry in Human Hair
A new method accurately detects bisphenols and parabens in human hair.
research Matrix Matching in Quantitative Bioanalysis by LC-MS/MS: A Dream or a Reality?
Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.
research Determination of Cystine and Cysteine in Altered Human Hair Fibers
Cold waving solutions quickly reduce cystine to cysteine in hair.
research LC Determination of Finasteride and Its Application to Storage Stability Studies
Finasteride remains stable for two years with proper storage.
research Anti-Doping Testing at FIFA World Cup 2022
All samples tested negative for banned substances, ensuring competition integrity.
research Hair Analysis in Health Assessment
Hair mineral analysis might help diagnose diseases early, but standard methods are needed.
research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
research Quality Evaluation of Minoxidil Topical Solutions Obtained from Magistral Pharmacies
Magistral pharmacies had issues with production quality and dosage accuracy.
research UPLC-MS/MS Method for the Simultaneous Quantification of Caffeine and Illicit Psychoactive Drugs in Hair Using a Single-Step High-Speed Grinding Extraction – Insights into a Cut-Off Value for Caffeine Abuse
The conclusion is that a new method can measure caffeine and drugs in hair, finding caffeine abusers have 70 times more caffeine than normal, with a proposed cut-off value for abuse.
research Determination of EtG in Body Hair Samples for Monitoring Teetotalism: A Suitable Alternative to Scalp Hair?
Body hair can be used to test for alcohol intake, especially in men.
research Discrete Nanoscale Distribution of Hair Lipids Fails to Provide Humidity Resistance
Hair lipids do not protect against humidity.
research An Analytical Study of Serum Ferritin, Vitamin D, and Thyroid Function in Females with Diffuse Hair Loss
Women with diffuse hair loss often have lower iron and vitamin D levels, but their thyroid function is typically normal.
research Enzyme-Linked Immunosorbent Assays for Doping Control of 5α-Reductase Inhibitors Finasteride and Dutasteride
New tests detect finasteride and dutasteride in urine quickly and easily.
research Analytical Methods on the Determination of Active Ingredients for Hair Nourisher Products
The new method accurately measures active ingredients in hair nourishment products.
research Electrochemical Detector for Liquid Chromatography: Determining Minoxidil in Hair-Growth Pharmaceuticals
The method effectively detects minoxidil in hair-growth products.
research Segmental Hair Analysis for 11-Nor-9-Tetrahydrocannabinol-9-Carboxylic Acid and the Patterns of Cannabis Use
THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.
research Herbal Hair Gel Formulation with 5α-Reductase Inhibitory Activity and Standardization by HPTLC
The herbal hair gel could be a safe hair growth treatment with minimal side effects.
research Analytical Methods of Dutasteride: An Overview
Dutasteride is more effective than finasteride for hair loss treatment.
research Age-Related Changes in Endogenous Glucocorticoids, Gonadal Steroids, Endocannabinoids, and Their Ratios in Plasma and Hair from Male C57BL/6 Mice
Male C57BL/6 mice show age-related fluctuations in certain hormones and their ratios in both blood and hair.
research Application of Different Analytical Techniques and Microbiological Assays for the Analysis of Macrolide Antibiotics from Pharmaceutical Dosage Forms and Biological Matrices
Future work on macrolide antibiotic analysis will aim to enhance selectivity, sensitivity, and efficiency using advanced chromatographic methods.
research 5α-Reductase Inhibitors: Evaluation of Their Potential Confounding Effect on GC-C-IRMS Doping Analysis
5α-reductase inhibitors can interfere with doping tests by masking banned substances.
research Silver Oxide Based Nanoparticle Assisted Laser Desorption/Ionization Mass Spectrometry for the Detection of Low Molecular Weight Compounds
Silver oxide nanoparticles help detect small molecules effectively.
research Skin Self-Photography for Dysplastic Nevus Monitoring Is Associated with a Decrease in the Number of Biopsies at Follow-Up: A Retrospective Analytical Study
Taking photos of your own skin can lead to fewer skin biopsies for mole monitoring.
research Antibody-Capped Mesoporous Nanoscopic Materials: Design of a Probe for the Selective Chromo-Fluorogenic Detection of Finasteride
Probe detects finasteride with high selectivity and low detection limit.
research Development and Validation of a New Gas Flame Ionization Detector Method for the Determination of Finasteride in Tablets
New method accurately measures finasteride in tablets.
research Hair Analysis: Assessment of Homemade Hair Treatment Effects on Drug Concentrations in the Keratin Matrix
Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.