How analytical work is placed
No single laboratory holds every determination on this price list. High-resolution mass spectrometry, ICP-MS at parts per billion, combustion elemental analysis, kinetic chromogenic endotoxin and compendial sterility under aseptic conditions are different instruments in different facilities, each with its own scope of accreditation. Each determination is placed where the capability for that method on that matrix exists, against the seven criteria below.
ANALYTON selects and qualifies each laboratory, specifies the method, reviews the data and issues the report. Subcontracting does not move any obligation off ANALYTON, which remains the client's only contractual counterparty.
| Under contract | Yes |
| Criteria applied | 7 |
| Names published | Only with written consent |
| Disclosed on request | Yes, in writing |
Liquilabs
HPLC-UV and HPLC-MS · Content and purity · Endotoxins · TAMC and TYMC
SideChain Analytics
HPLC-MS/MS · Net peptide content · Elemental impurities by ICP-MS · Endotoxins by LAL
Freedom Diagnostics
HPLC and LC-MS · Peptide identity and purity
Bioviridian
LC-MS and MALDI-MS · HPLC purity · Net peptide content · Endotoxins
Vantage Bioanalytics
RP-HPLC and LC-MS · Elemental impurities by ICP-MS · Endotoxins · Sterility
SteriGenix Analytical
HPLC and LC-MS · Endotoxins by LAL · Content and fill volume
PrimeCOA
HPLC and LC-MS · Net peptide content · Endotoxins and sterility
Vanadium BioLabs
HPLC and LC-MS · Identity, purity and net content · Sterility, endotoxins, elemental impurities
Axonis Analytics
HPLC-DAD and LC-MS · Elemental impurities by ICP-MS · Endotoxins by LAL
NACR Lab
HPLC and UPLC · LC-MS · Endotoxins and sterility · Water content
Uzorak
LC-MS characterisation · Impurity profiling
Janoshik Analytical
HPLC purity · LC-MS identity · Net peptide content · Endotoxins and sterility · Elemental impurities
Titreon Analytical
HPLC and LC-MS with Q-TOF · Elemental impurities by ICP-MS · Sterility and endotoxins · Residual solvents
and dozens of others
Weighted, and scored from published evidence rather than from a sales conversation. Anything that could not be established from documentation was scored as absent, not as probable.
ISO/IEC 17025 with a stated scope
An accreditation covers named methods on named matrices, never a laboratory in general. A certificate without the scope attached says nothing about whether it covers the determination being ordered.
LC-MS, high resolution with deconvolution
A single quadrupole cannot separate close analogues in the incretin class on mass alone. Identity established from a retention-time match against one standard is not identity.
ICP-MS to USP <233>, not XRF
Energy-dispersive XRF detects at parts per million. ICP-MS detects at parts per billion, which is the range the ICH Q3D permitted daily exposures actually sit in.
Endotoxin by kinetic chromogenic LAL or rFC
A gel-clot result is a limit test, not a quantity. A parenteral product needs a figure in endotoxin units with the inhibition and enhancement check behind it.
USP <61> and USP <71> held separately
Enumeration is not sterility. A laboratory that offers only one and describes it loosely will supply a pass where the client believes they bought the other.
CHNS or amino acid analysis for content
This is the determination that converts a purity percentage into milligrams. It is also the capability most often missing, which is why it carries its own criterion rather than being assumed.
Numeric LOD, LOQ and uncertainty on the report
A not-detected without a detection limit is not a result. A laboratory that cannot print the limit it worked to cannot support the report it issued.
| Determination | Instrument | Standard |
|---|---|---|
| Identity | LC-ESI-MS, high resolution | ICH Q2(R2) |
| Chromatographic purity | RP-HPLC with diode array | Area normalisation |
| Enantiomeric purity | Chiral stationary phase HPLC | ICH Q6A, tree 5 |
| Peptide content | Combustion elemental analyser, or AAA | Nitrogen to peptide |
| Water | Coulometric Karl Fischer | USP <921> |
| Counter-ion | Ion chromatography | Anion determination |
| Bacterial endotoxins | Kinetic chromogenic reader | USP <85>, USP <86> |
| Microbial enumeration | Incubators, membrane filtration | USP <61> |
| Sterility | Isolator or grade A/B suite | USP <71> |
| Elemental impurities | ICP-MS with microwave digestion | USP <233>, ICH Q3D |
| Residual solvents | Headspace GC-MS | USP <467>, ICH Q3C |
Eleven determinations, and no facility in the assessment held all eleven. A laboratory with high-resolution mass spectrometry frequently has no combustion analyser; one with a sterility isolator is rarely the same one running trace elemental work.
Placing every determination in one building would mean either dropping the ones that building cannot do, or reporting them from an instrument that is not the right one. Both happen, and neither is visible on a certificate that names no method.
| Net peptide content | The capability is held by fewer laboratories than any other on this list. Until it is contracted and qualified, a content figure in milligrams is quoted only where the determination can actually be placed. |
| Compendial sterility under an isolator | USP <71> run aseptically is a separate facility from the one doing chemistry, so it needs a second engagement rather than an extension of the first. |
| Acceptance of research compounds | Not every accredited laboratory will accept peptides or non-steroidal research compounds at all, regardless of capability. This is a question of policy rather than instrumentation and is settled before a sample is booked in, not after. |
These are the gaps the assessment actually found. They are on the page because a client who discovers a limit after the sample has been booked in has been sold something, and a client who reads it here has been told something.
A determination that cannot be placed is quoted as not available rather than accepted and approximated. Under Article 6 it is reported as not performed, with the reason, and it is not charged.
Which laboratories does ANALYTON work with?
A laboratory is named on this page where it works for ANALYTON under a signed agreement and has agreed in writing to be named. Under clause 5.5 of the General Conditions the identity of a subcontractor is otherwise commercially confidential and is not published. In every case it appears on the report where the applicable method or scope of accreditation requires it, and it is disclosed to the client in writing on request.
Why is a laboratory ANALYTON works with sometimes not named here?
Because naming one needs two separate permissions, not one. The first is a signed agreement to perform the work. The second is that laboratory's written agreement to be named and to have its mark reproduced, which analytical services agreements frequently withhold or restrict. A logo asserts a permission as much as it asserts a relationship, and a false claim of affiliation is prohibited outright by Annex I of Directive 2005/29/EC.
Why is the work split across several laboratories?
Because no single facility holds every capability on the price list. High-resolution mass spectrometry, ICP-MS at parts per billion, combustion elemental analysis, kinetic chromogenic endotoxin and compendial sterility under aseptic conditions are different instruments, different competences and, where it applies, different scopes of accreditation. Each determination is placed where the capability for that method on that matrix exists.
Who is responsible if a subcontracted determination is wrong?
ANALYTON. Under Article 5 of the General Conditions, subcontracting does not relieve ANALYTON of any obligation, and ANALYTON remains the client's sole contractual counterparty. The client acquires no direct contractual right against any subcontractor and does not need one.
Does the laboratory see who submitted the sample?
No. The sample travels under its submission reference rather than under the client's name, and any subcontractor is bound by confidentiality obligations no less onerous than those in Article 9.
Updated 2026-09-01. 7 criteria.