MDx BioAnalytical Laboratory vs Gold Standard Analytics
MDx BioAnalytical Laboratory is a veteran-owned Texas lab founded in 2008 that runs HPLC-DAD coupled to a triple quadrupole mass spectrometer for peptide identity and net content, alongside vaccine characterization, raw-material USP/EP testing, endotoxin and sterility. Gold Standard Analytics runs the same LC-MS/MS identity class on every panel, publishes every price and every certificate, opens every package on camera, and takes orders online in minutes.
MDx BioAnalytical Laboratory (MDx BioAnalytical Laboratory, Inc.), College Station, Texas, USA. mdxbiolabs.com. Facts checked September 9, 2026.
What MDx does well
- HPLC-DAD with triple quadrupole MS on peptides, the same instrument class as our own bench, rather than HPLC-UV alone.
- Eighteen years under one named founder, Dr. Earl L. White, with pharmaceutical and vaccine characterization depth most peptide labs lack.
- A working public CoA Search: each certificate carries an identifier that resolves at mdxbiolabs.com/certificates-of-analysis.
- Endotoxin, sterility and heavy metals on the menu, and PJLA ISO/IEC 17025 accreditation held historically, now in re-accreditation.
Side by side
| Gold Standard Analytics | MDx BioAnalytical Laboratory | |
|---|---|---|
| Location | Gold Standard AnalyticsHouston, Texas. Prepaid UPS label included. | MDx BioAnalytical LaboratoryCollege Station, Texas. Shipping at your cost. |
| Peptide identity, purity and content | Gold Standard AnalyticsGSA peptide base pricing includes LC-MS/MS identity and HPLC purity. Net peptide content is a separate $29 add-on at every peptide tier. Select the compound and tests in the current intake for a quote. | MDx BioAnalytical LaboratoryHPLC-DAD with triple quadrupole LC-MS/MS identity and net peptide content. No published prices; quoted per submission. |
| Turnaround | Gold Standard Analytics5–7 business days guaranteed; 48–72 h expedited (+50%); 24–48 h priority (+100%). | MDx BioAnalytical Laboratory"Rapid turnaround times" stated; no published business-day commitment. |
| Endotoxin | Gold Standard AnalyticsUSP <85> kinetic chromogenic LAL, $199, method and instrument on the certificate. | MDx BioAnalytical LaboratoryLAL endotoxin, gel-clot and kinetic; within the historic 17025 scope. Price by quote. |
| Sterility | Gold Standard AnalyticsUSP <71> 14-day membrane-filtration culture, $195. | MDx BioAnalytical LaboratorySterility testing offered; method and price not published. |
| Heavy metals | Gold Standard AnalyticsUSP <232>/<233> by ICP-MS, $169. | MDx BioAnalytical LaboratoryHeavy metals panel appears on MDx certificates; price by quote. |
| Public results | Gold Standard AnalyticsEvery certificate public and searchable by accession, including failures and retractions; a client cannot remove one. | MDx BioAnalytical LaboratoryPer-certificate lookup by COA identifier; no browsable public library, and results are the client’s to publish or not. |
| Chain of custody | Gold Standard AnalyticsEvery package opened on camera, container photographed, blind-coded; footage retained three years and shared with the client. | MDx BioAnalytical LaboratoryNot published. |
| Ordering | Gold Standard AnalyticsSelf-service online intake with verified account, live quote, instant label. API, MCP, Telegram and WhatsApp. | MDx BioAnalytical LaboratoryEmail to request a quote and instructions; primary client base is commercial pharma and raw-material work. |
| Payment | Gold Standard AnalyticsCard, Apple Pay, Google Pay, Klarna, bank, Mercury invoice with net terms, any cryptocurrency. | MDx BioAnalytical LaboratoryNot published; invoiced per quote. |
| ISO/IEC 17025 | Gold Standard AnalyticsOperated to ISO/IEC 17025 expectations with GLP-style data integrity. Not accredited. | MDx BioAnalytical LaboratoryPJLA ISO/IEC 17025:2017 certificate shown as "Cert Expired: PENDING Re-Accreditation Post-Audit of March 2026". Accredited historically; no active certificate at time of check. |
| Entity | Gold Standard AnalyticsGold Standard Analytics LLC, Houston, established January 2026; address, team and tours published. | MDx BioAnalytical LaboratoryMDx BioAnalytical Laboratory, Inc., founded 2008 by Dr. Earl L. White, Lt. Col. (Ret.), U.S. Army; SAM.gov-registered federal contractor. |
| Guarantee | Gold Standard AnalyticsMiss the quoted turnaround, or an accredited lab contradicts us on a retest of the retained sample, and the panel fee is refunded. | MDx BioAnalytical LaboratoryNone published. |
Sources: mdxbiolabs.com; NPI registry; mdxbiolabs.com; peptigrity.com, 2026; mdxbiolabs.com, checked Sep 2026; contractlaboratory.com, Apr 2026; peptidebenchmark.com, Jul 2026; mdxbiolabs.com; govconinabox.com.
Published prices
| Test | Gold Standard Analytics | MDx BioAnalytical Laboratory |
|---|---|---|
| Peptide identity, purity and net content | Gold Standard AnalyticsView current pricing | MDx BioAnalytical Laboratory$0 |
| GLP-1 class panel | Gold Standard AnalyticsView current pricing | MDx BioAnalytical Laboratory$0 |
| Endotoxin, USP <85> | Gold Standard Analytics+$199 | MDx BioAnalytical Laboratory$0 |
| Sterility, USP <71> | Gold Standard Analytics+$195 | MDx BioAnalytical Laboratory$0 |
| Heavy metals, ICP-MS | Gold Standard Analytics+$169 | MDx BioAnalytical Laboratory$0 |
Gold Standard prices are the published catalog. MDx publishes no fee schedule and quotes each submission by email. A dash means no public price.
Questions about MDx BioAnalytical Laboratory and Gold Standard Analytics
Is Gold Standard an MDx Biolabs alternative?
Yes. Both are Texas labs running triple-quadrupole LC-MS/MS identity on peptides. Gold Standard adds published prices, online ordering with an instant prepaid label, a fully public certificate library and video chain of custody.
Is MDx ISO 17025 accredited?
MDx held a PJLA ISO/IEC 17025:2017 certificate and its site shows it as expired pending re-accreditation after a March 2026 audit. Gold Standard operates to 17025 expectations and is not accredited; neither lab held an active certificate at the time of this check.
How do prices compare?
MDx quotes each submission by email; no schedule is published. Gold Standard includes identity and purity in peptide base pricing, with net content as a separate $29 add-on and shows the live quote before you pay.
How do I verify an MDx certificate?
Enter the COA identifier printed on the report at mdxbiolabs.com/certificates-of-analysis. Gold Standard certificates verify here by accession number, and the whole library is browsable without a code.
Which lab is faster?
MDx states rapid turnaround without a published number. Gold Standard guarantees 5–7 business days standard, with 48–72 hour and 24–48 hour options.
Does MDx accept single vials from individuals?
Its client base is primarily commercial pharma and raw-material work; confirm acceptance and pricing by email before shipping. Gold Standard accepts one vial from anyone with a verified account.
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Submit a sample
Prepaid domestic label, public certificate, chain-of-custody video. Standard turnaround 5–7 business days.