Marfleet Analytical Services

LaboratoryKingston-upon-Hull, East Riding of Yorkshire, United Kingdom

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6.0/ 1018 of 30 pts

PAL Testing Evidence Score

Ranked on the United Kingdom page. Based on what the company publishes; not an audit.

Facility transparency

4/6

Analytical scope

8/9

Quality & reporting

2/10

Ordering transparency

4/5

Overview

Marfleet Analytical Services Ltd is a UK-based analytical laboratory located in Kingston-upon-Hull, England, founded in 2015. The site states it provides independent peptide testing services for research organisations, manufacturers, distributors and individuals, alongside testing for pharmaceutical, healthcare, cosmetic, food and speciality chemical sectors. Advertised peptide-related tests include HPLC identity/purity/concentration, LC-MS impurity profiling, LAL endotoxin testing, heavy metals by ICP-MS, bioburden screening and sterility confirmation, with published starting prices. The company states it does not distribute or sell peptide products. It states its Quality Management System holds an ISO 9001:2015 certificate, and that a Microbiology Laboratory application with UKAS is in progress. Samples can reportedly be submitted via forms linked on the site. Details are summarised from the company's own website and have not been independently audited.

Key facts

Business type	LaboratoryPerforms the analyses in its own laboratory.
Website	marfleetanalytical.com
Public contact	info@marfleetanalytical.com · Contact page
Legal entity	Marfleet Analytical Services Ltd source
Sample submission / quote	Sample submission form source
Accreditation	ISO 9001:2015 certified compliant (not counted: no accreditor/certificate, or not yet granted) source ISO 17025 application in progress with UKAS (not counted: no accreditor/certificate, or not yet granted) source
Pricing	HPLC Identify/Purity/Concentration from £120 source Impurity Profiling by LCMS QQQ from £120 source LAL Endotoxin £95 source Heavy metals by ICP-MS £95 source
Turnaround	Not found in public sources
Report verification	Not found in public sources
Partner laboratories	Marfleet Microbiology Ltd handles microbiological screening of water source

Confirmed locations

Testing facility Wyke House, Wyke Works, Hedon Road, Kingston-upon-Hull, East Riding of Yorkshire, United Kingdom source

Testing services

Service	Method (as published)	Source
Purity (HPLC/UPLC)HPLC Identify/Purity/Concentration	HPLC	source
IdentityHPLC Identify/Purity/Concentration	HPLC	source
Quantity / net contentHPLC Identify/Purity/Concentration	HPLC	source
EndotoxinLAL Endotoxin	LAL	source
Rapid microbial / PCR screenSterility Confirmation	unspecified sterility method	source
Heavy metalsHeavy metals by ICP-MS	ICP-MS	source
Microbial limitsBioburden Screening	unspecified microbial screening	source

A rapid / PCR microbial screen is not a compendial culture-based sterility test (e.g. USP <71>).

Evaluation criteria

PAL Testing Evidence Score v1. How it works. – means not found in public sources as of 2026-09-30; it is not a finding that the facility lacks it.

Facility transparency 4/6

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Street address published 2 ptsNot found in public sources. A street address (not a PO box, registered agent or mailing address) is published on the company's own site.
✓
Address identified as the testing facility or sample intake 2 ptsDocumented. The site ties an address to the laboratory or to where samples are received.
✓
Legal entity named 1 ptDocumented. The operating company's legal name is published.
✓
Named scientific staff 1 ptDocumented. At least one scientist or lab lead is named.

Analytical scope 8/9

✓
Purity testing (HPLC/UPLC) 2 ptsDocumented. Chromatographic purity testing is offered.
✓
Identity testing (method named) 2 ptsDocumented. Identity confirmation is offered and the method is named (e.g. LC-MS, MALDI-TOF). Mass spectrometry counts.
✓
Quantity / net content 2 ptsDocumented. Quantitation of the amount in the vial is offered.
✓
Endotoxin 1 ptDocumented. Bacterial endotoxin testing is offered.
–
Culture-based sterility (e.g. USP <71>) 1 ptNot found in public sources. Compendial or culture-based sterility testing. PCR or rapid screens are listed but do not earn this point.
✓
Heavy metals / elemental 1 ptDocumented. Heavy-metal or elemental analysis is offered.

Quality & reporting 2/10

✓
Method detail documented 2 ptsDocumented. The site documents how analyses are run (instrument, column, detector, reference standards or validation), not just a technique name.
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Accreditation stated with accreditor or certificate number 2 ptsNot found in public sources. An accreditation such as ISO/IEC 17025 is stated with the accrediting body or certificate number. 'Pending', 'aligned' or 'compliant' statements do not count.
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Accreditation found in the accreditor's public directory 3 ptsNot found in public sources. PAL found the accreditation in the accrediting body's public directory, or a verified owner submitted it and PAL confirmed it there.
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Public report verification lookup 2 ptsNot found in public sources. Anyone can check a report's authenticity by ID or QR code.
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Sample report published 1 ptNot found in public sources. An example report or COA can be viewed.

Ordering transparency 4/5

✓
Concrete pricing published 2 ptsDocumented. At least one concrete price is published.
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Turnaround time published 1 ptNot found in public sources. A concrete turnaround time is published.
✓
Online ordering, submission or quote link 2 ptsDocumented. An online order, sample submission form or quote request is available.

Is this your facility?

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Company-provided updatesYour description, testing services, methods and instruments, facility locations, sample submission link, turnaround, pricing and contact details, shown in a section labelled “Provided by the company”. Not checked by PAL and not used in the score. Free: sent to PAL as correction requests. PAL Pro: published directly.
PAL-reviewed evidenceDocuments or links for a scoring criterion. PAL reviews them under the same rule used for every facility; only accepted evidence changes a finding. Any plan.
PAL-verified lab credentialsAccreditations such as ISO/IEC 17025. They count only after PAL finds them in the accreditor’s public directory. Any plan.

PAL Pro is an optional paid plan for company-provided updates, extra images and the PAL Pro badge. It never verifies a credential, accepts evidence, or changes a finding, score, eligibility or ranking position.

Ownership verification confirms that you control the business. It is separate from laboratory credentials and from PAL Pro, it is not an endorsement, and it does not change any finding or score.

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Sources

Last reviewed 2026-09-30. All facts above were taken from these pages on the company’s website.

Peptide Ad Lab has not tested samples at or audited this facility. Information is summarised from public sources and may change. Businesses can claim this profile to request corrections.