The Library
1530 papers on microsampling and monitoring, each with a finding paraphrased to our standard and labelled in one vocabulary. Every entry links to a legitimate copy; nothing is copied from an abstract.
9 papers labelled “steroids”, newest first.
2026
The analysis indicates that dried blood spots and volumetric absorptive microsampling enable minimally invasive monitoring of prohibited substances, with volumetric absorptive microsampling offering improved quantitative reliability over traditional dried spots.
Liquid Chromatographic Methods for Microsampling in Sports Drug Monitoring: Progress in DBS and VAMS — Zhang, Biomedical chromatography : BMC (paywalled)
- vams
- doping
- blood
- dbs
- dried
- steroids
- toxicology
- hormones
- validation
- biomarkers
2025
Testosterone, androstenedione, cortisol and cortisone were measurable from 200 µL saliva, but estradiol fell below quantification and progesterone in under half of samples: only a subset of steroids is reliable in saliva, and not interchangeable with serum.
Non-invasive assessment of free steroid hormones: a high-throughput LC-MS/MS method for salivary steroid quantification — Slettvoll et al., Analytical and Bioanalytical Chemistry
- cortisol
- steroids
- hormones
- liquid
- validation
- saliva
2025
The authors found that a single microdose of recombinant EPO was detectable up to 72 hours using ITP and CP methods, though the Tasso microsampling device showed lower sensitivity than Mitra and Capitainer. Additionally, isotope ratio mass spectrometry successfully detected testosterone micro-dosing in all analysed samples, supported by serum testosterone levels.
Detection of a Single Microdose of Testosterone and Recombinant EPO in Healthy Volunteers — Heiland et al., Drug testing and analysis
- neoteryx-mitra
- doping
- blood
- dbs
- dried
- steroids
- capillary
- hormones
- urine
- validation
2024
A validated LC-MS/MS assay successfully measured 13 steroid hormones and two synthetic steroids in saliva, requiring only 50 microlitres, or down to 2 to 5 microlitres for nine analytes. This shows saliva's viability for non-invasive, patient-centric microsampling and decentralised monitoring in paediatric, neonatal and adult populations.
An LC-MS/MS assay for simultaneous determination of 13 steroid hormones and two synthetic steroids in saliva: potential utility for paediatric population and beyond — Dahl et al., Scandinavian journal of clinical and laboratory investigation (paywalled)
- cortisol
- self-collection
- steroids
- pediatric
- hormones
- liquid
- validation
- saliva
2021
Four dried urine spots across a day matched a 24-hour liquid collection for 17 reproductive hormones and metabolites, with intraclass correlations above 0.90.
Reliability of a dried urine test for comprehensive assessment of urine hormones and metabolites — Newman & Curran, BMC Chemistry
- metabolome
- dried
- steroids
- fertility
- hormones
- liquid
- urine
- validation
2021
Handelsman et al. validated a direct LCMS assay for pregnanediol glucuronide in dried urine spots without deconjugation. In ten women monitored across one menstrual cycle, using two or three consecutive first-void samples reduced false-negative ovulation detection from eight per cent to 2.6 per cent and 1.9 per cent respectively, enabling accurate home-based fertility assessment.
Direct measurement of pregnanediol 3-glucuronide (PDG) in dried urine spots by liquid chromatography-mass spectrometry to detect ovulation — Handelsman et al., The Journal of steroid biochemistry and molecular biology (paywalled)
- urine
- dried
- first-void
- self-collection
- validation
- fertility
- hormones
- steroids
2020
A direct DUS-versus-VAMS comparison for 13 steroids on the same urine: VAMS gave better precision and recovery and superior one-year room-temperature stability.
Dried urine microsampling coupled to LC-MS/MS for the analysis of unconjugated anabolic-androgenic steroids — Protti et al., Molecules
- vams
- volumetric
- doping
- dried
- steroids
- toxicology
- hormones
- urine
- validation
2020
Dried urine spot and volumetric absorptive microsampling methods were validated for quantifying six corticosteroids in 30 μl urine, showing good linearity, extraction yields exceeding 81 percent, and precision within 15 percent relative standard deviation. Analytes remained stable for seven days at room temperature, indicating urine microsampling is viable for remote antidoping control and could support decentralised steroid monitoring.
Microsampling and LC-MS/MS for antidoping testing of glucocorticoids in urine — Protti et al., Bioanalysis (paywalled)
- urine
- dried
- vams
- validation
- hormones
- steroids
- doping
- toxicology
2019
This study found that dried urine metabolite patterns followed serum concentrations. It shows excellent agreement for the 4-spot method versus 24-hour collections and dried versus liquid urine, with intraclass correlation coefficients greater than 0.95.
Evaluating urinary estrogen and progesterone metabolites using dried filter-paper samples and GC-MS/MS — Newman et al., BMC Chemistry
- dried
- steroids
- fertility
- hormones
- liquid
- urine
- validation
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