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, rather than HPLC-UV alone; our own bench pairs a VWD with a triple quadrupole.
- 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 or FedEx label, billed at carrier cost. | MDx BioAnalytical LaboratoryCollege Station, Texas. Shipping at your cost. |
| Peptide identity, purity and content | Gold Standard AnalyticsGold Standard charges one flat price for any peptide or blend, GLP-1s included: $129 per sample for HPLC-MS identity and purity, or $199 with net content (mg per vial). | MDx BioAnalytical Laboratory$225 flat for LC-MS/MS identity, UPLC purity and net peptide content in any combination ($213 at 11 to 20 vials, $202 at 21 or more). (checked October 28, 2026) |
| Endotoxin | Gold Standard AnalyticsUSP <85> kinetic chromogenic LAL, $149, method and instrument on the certificate. | MDx BioAnalytical Laboratory$150, EndoZyme enzymatic assay. (checked October 28, 2026) |
| Sterility | Gold Standard AnalyticsUSP <71> 14-day membrane-filtration culture, $199. | MDx BioAnalytical LaboratoryNo USP <71> sterility price published; bioburden testing is listed. (checked October 28, 2026) |
| Heavy metals | Gold Standard AnalyticsUSP <232>/<233> by ICP-MS, $199. | MDx BioAnalytical LaboratoryQuote only. (checked October 28, 2026) |
| Public results | Gold Standard AnalyticsEvery certificate is published, including failures and retractions, and certificates issued with a verification code can be checked at /verify; 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. Your copy of the unboxing and sample-prep video comes with the video add-on ($49 per sample) or a Gold Standard Membership. | 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 AnalyticsProcedures modelled on ISO/IEC 17025 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. |
| Refunds | Gold Standard AnalyticsSee the refund policy for the remedies that apply to your order. A confirmed error of ours is corrected publicly, and credited or refunded if it can’t be fixed. | 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 |
|---|---|---|
| Identity and purity, one peptide | Gold Standard Analytics$129 $199 with net content; same price for GLP-1s and blends | MDx BioAnalytical Laboratory$225 identity, purity, net content |
| Endotoxin | Gold Standard Analytics+$149 USP <85> | MDx BioAnalytical Laboratory$150 |
| Sterility | Gold Standard Analytics+$199 USP <71>, 14-day | MDx BioAnalytical LaboratoryNot published |
| Heavy metals | Gold Standard Analytics+$199 ICP-MS | MDx BioAnalytical LaboratoryQuote |
| Certificate check | Gold Standard AnalyticsAccession or QR at /verify | MDx BioAnalytical LaboratoryCoA code search |
Checked October 28, 2026. MDx BioAnalytical Laboratory prices from its own website (mdxbiolabs.com/sample-submission, mdxbiolabs.com/services, mdxbiolabs.com/certificates-of-analysis); Gold Standard Analytics prices from peptide testing cost. Prices are per sample for a standard research peptide and exclude shipping; confirm current prices with each laboratory.
About MDx BioAnalytical Laboratory
From MDx BioAnalytical Laboratory's own website, checked October 28, 2026.
Where is MDx BioAnalytical Laboratory located?
5890 Imperial Loop, Suite 12, College Station, TX 77845.
How much does MDx BioAnalytical Laboratory charge for peptide testing?
$225 flat for LC-MS/MS identity, UPLC purity and net peptide content in any combination ($213 at 11 to 20 vials, $202 at 21 or more). Endotoxin: $150, EndoZyme enzymatic assay. Sterility: No USP <71> sterility price published; bioburden testing is listed.
How do you verify a MDx BioAnalytical Laboratory certificate?
Enter the CoA code in the search box on its Certificates of Analysis page. (mdxbiolabs.com/certificates-of-analysis) Check a certificate with the laboratory that issued it; Gold Standard Analytics certificates resolve at /verify.
Is MDx BioAnalytical Laboratory accredited?
Its homepage shows a PJLA ISO/IEC 17025 certificate marked expired and pending re-accreditation, and its services page says accreditation is pending. Gold Standard Analytics is not ISO/IEC 17025 accredited.
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-recorded custody at our Houston lab.
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 is not accredited; neither lab held an active certificate at the time of this check.
How do prices compare?
MDx publishes its rates in the estimator on its sample-submission page: $225 for identity, purity and net content and $150 for endotoxin. Gold Standard charges $129 for identity and purity of any peptide, or $199 with net content, 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.
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, filmed chain of custody.