Technology

Why Choose Precision Mass Spec?

We occupy the Goldilocks Zone - faster, cheaper, and more precise than every alternative.

Head-to-Head Comparison

Feature
Janoshik
Overseas
Vanguard Lab
US · Olympia, WA
Precision MS
✓ Best Choice
LocationOverseas (EU)US (Washington)US-Based
TechnologyHPLC / Basic MSHPLC OnlyLC-MS/MS (Superior)
Turnaround TimeVariable / Unknown3–5 Business Days<48 Hours
Price~$120+$250+$149
AccreditationNoneISO 17025ISO-Level Rigor
Isomer DetectionLimitedCannot distinguishFull MS/MS fragmentation
Certificate of AnalysisBasic reportStandard certificateFull certificate + methodology

The Goldilocks Zone

Every alternative forces a tradeoff. We eliminate the tradeoff entirely.

Janoshik

Cheap but Risky

  • ✗ Overseas - no US oversight
  • ✗ Variable turnaround
  • ✗ No accreditation
  • ✓ Low price
THE SWEET SPOT
Precision MS

Fast. Affordable. Precise.

  • ✓ US-Based laboratory
  • ✓ <48hr turnaround
  • ✓ $149/test
  • ✓ LC-MS/MS technology
Vanguard Lab

Reliable but Slow & Costly

  • ✓ US-based
  • ✓ ISO accredited
  • ✗ 3–5 day turnaround
  • ✗ $250+ per test

Why LC-MS/MS Matters

Strip-mall labs use HPLC - which only measures UV absorption. It cannot tell the difference between compounds that share the same molecular weight.

Real example: Enclomiphene and Clomiphene are isomers with identical molecular weights. HPLC sees them as the same compound. LC-MS/MS uses mass fragmentation patterns - a molecular "fingerprint" - to distinguish them definitively.

The difference in plain English:

HPLC tells you something is there. LC-MS/MS tells you exactly what it is - down to parts-per-billion.

Standard HPLC (Competitors)

UV absorption only · Cannot distinguish isomers · Higher detection limit · Single-dimension separation

LC-MS/MS (Precision MS)

Molecular fingerprinting · Isomer-level precision · Parts-per-billion sensitivity · Dual-stage mass filtering

Methodology & Standards

LC-MS/MS Technology

Liquid Chromatography–Mass Spectrometry/Mass Spectrometry

Two-stage mass filtering for molecular fingerprinting. Identifies compounds to parts-per-billion sensitivity. Distinguishes isomers HPLC cannot.

Learn More →

ISO-Level Methodology

Validated methods with calibration curves and QC standards

Every test follows ISO 17025 rigor with documented calibration curves, reference standards, and quality control checks. Full traceability and reproducibility.

Learn More →

Certificate of Analysis

Full certificate with compound identification, purity, and quantification data

Detailed CoA includes chromatographic data, mass spectra, calculated purity, net content, R² values, and analyst notes. Verifiable and publicizable.

Learn More →

Under 48-Hour Turnaround

Results delivered faster than any comparable US lab

Most tests analyzed within 24 hours of intake. Full results and certificate delivered via email. No expedited fees required for standard processing.

Learn More →

What Clients Say

"Fastest turnaround I've experienced. Results in 36 hours with a clear Certificate of Analysis. Exactly what our customers expect from us."

RV

Research Vendor

Northeast US

"Switched from Vanguard. Half the price, faster results, and the LC-MS/MS data is far more detailed than anything we were getting before."

CS

Compound Supplier

Texas

"The ability to distinguish Enclomiphene from Clomiphene with MS/MS fragmentation is a game-changer. No other affordable lab offers this."

MK

Lab Manager

Florida