Scientific equipment

Vac- HeadSpace, SPME, SPME Arrow caps

 Vac- HeadSpace, SPME, SPME Arrow caps (closures) are designed to improve your headspace and SPME analyses. The closures offer a gastight seal to 20 mm crimp top headspace vials with a long neck over a long period of time and during operation. The metallic body of the closure has magnetic properties to allow easy handling by the Centri autosampler, without using additional magnetic caps.

- Easy to use and implement in any routine laboratory

- Reusable caps, reducing laboratory waste and extra costs

- Closures are also ideal for sample storage at atmospheric pressure without losing volatile analytes e.g., during long waiting times on an autosampler tray

Read more: Instruction for use - Vac SPME Fiber-Arrow

Soil probes

VOC-Mole is a stainless steel assembly that is inserted into the ground, allowing soil gas to be sampled onto a sorbent tube, for analysis using thermal desorption (TD). VOC-Mole is constructed from stainless steel drilled with a series of holes through which soil gases can pass.

- Robust and easy to transport

- Compatible with passive and pumped sampling

- Can be left in situ for long periods

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VOC-Mole flyer

VOC-Mole Instruction for use

Radiello

radiello® is a long-established radial diffusive (passive) sampling device for volatile organic compounds (VOCs), used for indoor, outdoor, workplace, and personal monitoring. The diffusive body can be fitted to the supporting plate in either a vertical or horizontal position. Starter kits are available that include both the cartridge and appropriate diffusive body, along with a support plate and adapter, plus a blank cartridge as a shipment blank. 

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Radiello passive sampling workflow

Radiello instruction for use

POD Sampler

The POD Sampler (POcket Diffusive Sampler) is a radial diffusive sampler for volatile organic compounds (VOCs), compatible with analysis by thermal desorption. Developed in partnership with pioneers in radial sampling at the Joint Research Centre of the European Commission the POD Sampler’s design results in exceptional performance. Compared with axial samplers, radial samplers have a larger diffusive surface area for adsorption and a shorter diffusive pathway.

Xem thêm: POD Sampler flyer

Continuous on-line thermal desorber for environmental monitoring of trace-level organic vapors

TT24-7xr is an advanced, versatile thermal desorption (TD) instrument designed for low-flow monitoring of airborne very volatile and volatile organic compounds (VVOCs and VOCs) with GC-MS.

Optimized for continuous monitoring, TT24-7xr incorporates twin trap technology ensuring complete sample coverage without interruption and enhanced sample throughput. With advanced water management and automated stream selection between sample, standard, and blank, TT24-7xr is the ideal choice for unattended, continuous monitoring of environmental air, material testing chambers, and process gas streams.

Xem thêm: TT24-7xr brochure

Cryogen-free, automated canister and whole-air preconcentration system

UNITY–CIA Advantage-xr™ is an inert, multi-channel system designed for the automated analysis of VOCs in canisters and bags. It features capacity for up to 27 channels, operates completely without cryogen, and is compatible with both on-line and tube-based sampling. It is the ultimate solution for high-throughput laboratories performing canister-based methods such as US EPA TO-15/TO-15A and Chinese EPA HJ 759. It is also ideal for analysts requiring a versatile TD system capable of handling other whole-air samples as well as sorbent tubes.

UNITY–CIA Advantage-xr™ is also available with our award-winning Multi-Gas functionality. The Multi-Gas Enabled version is the only canister and bag thermal desorber independently certified for operation with a choice of three carrier gases: Helium, Nitrogen, and Hydrogen. Hydrogen carrier gas offers fast, cost-effective analysis and protects the laboratory against future Helium shortages.

Read more: UNITY–CIA Advantage-xr brochure

Cryogen-free automated thermal desorption system for unattended on-line air monitoring

UNITY–Air Server-xr™ is an air monitoring system that introduces a controlled flow of sample directly into an integral focusing trap, allowing automated on-line analysis of VVOCs and VOCs in air or gas. It is the ideal solution for 24/7 monitoring of volatiles such as PAMS ozone precursors and odorous species, especially in remote locations where unattended sampling at specific time intervals is necessary.

Xem thêm: UNITY–Air Server-xr brochure

Double sample throughput by simultaneously processing two batches of thermal desorption (TD) tubes

Dual-TD™ is a thermal desorption system designed to maximize sample throughput for dual-channel GC instruments by simultaneously processing two batches of sample tubes.

Featuring two TD100-xr units running in parallel, Dual-TD instantly doubles sample processing productivity. The system also utilizes "overlap mode" to desorb a new pair of samples while the analysis of the previous pair is still underway, completely eliminating GC "idle time." Dual-TD is compatible with any dual-channel GC and is independently certified for operation with Helium, Nitrogen, or Hydrogen carrier gases (Multi-Gas capability).

Dual-TD is the ideal solution for high-throughput laboratories needing to:

- Efficiently carry out large-scale sorbent tube background testing.

- Undertake targeted trace VOCs and SVOCs analysis.

- Measure total VOC analysis at scale.

Read more: Dual-TD product information

UNITY–ULTRA-xr Pro

High-Capacity Multi-Tube Thermal Desorber with Advanced Re-collection

UNITY–ULTRA-xr Pro™ is our flagship automated thermal desorption (TD) system, offering the highest capacity in our range. It enables the unattended processing of up to 199 sorbent tubes in a single sequence.

A hallmark of Markes’ technology is the automated sample re-collection of split flows from both the TD tubes and the focusing trap. This unique feature provides ultimate sample security and peace of mind. It is the ideal solution for high-throughput laboratories looking to maximize productivity and leverage the power of automated sample re-analysis.

UNITY–ULTRA-xr Pro also features Markes’ award-winning Multi-Gas functionality, independently certified for use with three carrier gases: Helium, Nitrogen, and Hydrogen. Utilizing Hydrogen as a carrier gas ensures faster, more cost-effective analyses while future-proofing your lab against Helium shortages.

Read more: UNITY–ULTRA-xr Pro brochure

Multi-tube thermal desorber with advanced upgrade options

UNITY–ULTRA-xr™ is an automated thermal desorption system designed for the rapid and unattended processing of up to 100 sorbent tubes in a single sequence. Additional options include autosamplers for canister, bag, or on-line analysis. The UNITY–ULTRA-xr is the ideal platform for high-throughput laboratories requiring the flexibility to expand their analytical capabilities to extended analyte ranges and varied sample types while maximising sample throughput.

The system also features Markes' award-winning Multi-Gas functionality, which is independently certified for operation with a choice of three carrier gases: helium, nitrogen, and hydrogen. Using hydrogen as a carrier gas enables fast, cost-effective analyses and protects the laboratory against future helium shortages.

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UNITY-xr brochure

ULTRA-xr brochure