UNITY-xr Markes International

The most versatile and powerful thermal desorption unit.

UNITY-xr™ is an industry-leading analytical​ TD instrument for the simultaneous analysis of VOCs, SVOCs and thermally labile compounds collected onto sorbent tubes. 

In contrast to other thermal desorption units, UNITY-xr quantitatively re-collects samples for re-analysis or storage, enhancing sample security. UNITY-xr also features an electrically cooled cold trap, dispensing with the expense and inconvenience of liquid cryogen.

UNITY-xr is perfect for any laboratory needing a versatile thermal desorber for all their TD applications.

Product benefits:

  • With quantitative sample re-collection for repeat analysis, UNITY-xr offers simple method/data validation and overcomes the ‘one-shot’ limitation of other systems.
  • Analyse the widest possible range of VOCs and SVOCs in a single run, including reactive and thermally labile species.
  • Reduce running costs by avoiding the need for cryogen.
  • Enhance productivity with the world’s most versatile thermal desorber – UNITY-xr offers unmatched analytical performance for the widest range of TD applications.
  • Additional modules allow automation of multiple tubes, canisters and on-line samples – making UNITY-xr the perfect platform for expansion as the needs of your lab grow.
  • You’re using a desorber that complies with key standards such as US EPA Method TO-17.

Features:

  • Quantitative sample re-collection of all the split flows enables repeat analysis of critical samples and easy method validation.
  • An inert, optimised flow path allows quantitative recovery of C2 to C44, including reactive and thermally labile species... from percent to sub-ppt concentrations.
  • As well analysing 3½″ standard TD tubes, the UNITY-xr facilitates analysis of on-line, canister and bag samples through the modular addition of versatile accessories.
  • Rapid operation of the electrically-cooled focusing trap reduces costs and ensures fast sample throughput.
  • Method-compliance is aided by tube- and leak-testing, water management, and addition of internal standards.
  • Samples are easily tracked with barcoded tubes and RFID TubeTAGs.
  • Compatible with all major makes of GC and GC–MS.
TD84.Using thermal desorption to enhance aroma profiling by GC-MS.pdf
TD78B.Supplement to Detecting low-ppt levels of odorants in drinking water using headspace-thermal desorption.pdf
TD78.Detecting low-ppt levels of odorants in drinking water using headspace-thermal desorption.pdf
TD52.The use of TD–GC(MS) in flavour and fragrance profiling.pdf
TD96.Comparing the VOC content of Indian and UK tobacco by headspace-thermal desorption.pdf
TD23.Using the UNITY method development mode to analyse dried foodstuffs by direct desorption.pdf
TD94.Automating ‘High-Low’ thermal desorption analysis of a complex beer sample.pdf
TD88.Enhancing olfactory profiling of fruit juices and wine using complementary thermal desorption techniques.pdf
TD95.Food decomposition analysis using the Micro-Chamber-Thermal Extractor and TD-GC-MS.pdf
TD98.Analysis of a betel-nut foodstuff by direct thermal desorption.pdf
TD100.Comprehensive analysis of aroma compounds released from incense sticks using TD-GC-MS.pdf
TD104.Rapid and sensitive aroma profiling of strawberries using dynamic headspace sampling and TD-GC-TOF MS.pdf
TD101.Rapid aroma profiling of cheese using a Micro-Chamber-Thermal Extractor with TD-GC-MS analysis.pdf
TD105.Near-real-time profiling of fragrance components and potencial allergens released from an air freshener using TD-GC-TOF MS.pdf
TD34.Monitoring trace-level high-boiling compounds (triethyl phosphate and methyl salicykate) in air.pdf
TD41.Analysis of the residual solvent dimethyl sulfoxide in a drug precursor.pdf
TD44.the analysis of free-VX from sorbent tubes at low and sub-nanogram levels.pdf
TD39.Analysis and method validation of of semi-volatile phosphorus pesticides by thermal desorption.pdf
TD45.Detection of trace levels of drugs in dust by TD–GC-MS.pdf
TD58.The application of thermal desorption to forensic investigations.pdf
TD63.Continuous monitoring of trace-level toxic chemicals in air.pdf
TD91.Using headspace–thermal desorption to enhance the measurement of residual solvent in drugs.pdf
TD40.Direct desorption of VOCs and SVOCs from leather furnishings.pdf
TD33.Analysis of the interior atmosphere of a passenger car by TD-GC-MS.pdf
TD14.Monitoring labile, high-boiling organic vapours such as those found in -clean room air- in semi-conductor fabrication plants.pdf
TD28.Optimising Analytical Performance and Extending the application range of thermal desorption for monitoring air indoors and inside vehicle cabins.pdf
TD56.TD-GC-MS analysis of VOCs for material emissions testing.pdf
TD55.Using the FLEC to determine emissions of VOCs from materials and products.pdf
TD57.Characterisation of paint samples by direct desorption TD-GC-MS.pdf
TD59.Direct desorption of car trim materials for VOC and SVOC analysis in avvordance whit VDA method 278.pdf
TD62.Materials emissions testing in the semiconductor and electronics industries.pdf
TD65.Automating the measurement of VOCs ans SVOCs in materials using direct thermal desorption.pdf
TD66.Improving the identification and measurement of trace odorous and toxic compnents during material emissions testing.pdf
TD67.Introducing the Micro-Chamber-Thermal Extractor for rapuid emissions screening of products and materials.pdf
TD70.Materials emissions testing using the FLEC® Cell, testing recovery and sink effects.pdf
TD69.Correlation of emission rates determined using the Micro.Chamber-Thermal Extractor whit those for conventional emission-chamber tests.pdf
TD68.Using Markes emission screening technology to simplicity compliance whit construction product regulations.pdf
TD71.Summary of FLEC Applications.pdf
TD72.An Introduction to Emission Cells and comparison to small chambers for material emissions testing.pdf
TD73.The performance of Markes Micro-chamber- Thermal Extractor for low-cost, fast and meaningful material emissions screening.pdf
TD89.Thermal desorption technology for testing chemical emissions from construction products and consumer goods.pdf
TD90.Automated detection of trace target compounds in complex chemical emission profiles from products and materials.pdf
TD93.Rapid microchamber tests for screening chemical emissiond from car trim in accordance with ISO 12219-3.pdf
TD74.The suitability of emission cells for emissions testing and a comparison with samll chambers.pdf
TD103.Enhancing the development of low-emitting products and materials.pdf
TD3.National and international standard methods relating to speciated monitoring of vapour-phase organic compounds in air.pdf
TD5.Advice on sorbent selection, tube conditioning, tube storage and air sampling.pdf
TD15.On-line process control of speciated organic chemicals in industrial gases at sub-ppb levels.pdf
TD18.Developments in the determination of nitrous oxide using TD-GC.pdf
TD16.Round-the-clock, on-line and cryogen-free monitoring of hydrocarbons from acetylene to trimethylbenzene in ambient air.pdf
TD32.The analysis of sulfur compounds using on-line and off-line TD-GC.pdf
TD29.VOC air monitoring technology and its application to contamined land.pdf
TD35.Thermal desorption of dioctyl phthalate and other plasticisers.pdf
TD27.A review of sorbent-based sampling methods for VOCs and SVOCs in air.pdf
TD38.Occupational Exposure Limit Levels for VOCs compatible whit TD-GC.pdf
TD37.Workplace Air Monitoring using Pumped sampling onto sorbent tubes and analysis by TD-GC-MS.pdf
TD46B.Monitoring organic vapours in air – A comparison of thermal desorption and carbon disulfide(CS2) extraction.pdf
TD46.Monitoring organic vapours in air – A comparison of.pdf
TD53.Quantitative recovery and method validation of high-boiling SVOCs using TD-GC-MS.pdf
TD47.The Analysis of Landfill Gas Compounds using TD-GC-MS.pdf
TD49Fenceline and ambient monitoring of benzene and other hydrocarbons using diffusive samping and TD analysis.pdf
TD77.Using Thermal Desorption for Industrial (Stack) emissions testing.pdf
TD81.Analysis of canister air samples using cryogenfree thermal desorption in compliance with US EPA method TO-15.pdf
TD80.Evaluation of a ‘Soil Gas’ sorbent tube for improving the measurement of volatile and semivolatile fuel vapors in contamined lan.pdf
TD86.Monitoring 'air toxics' in ambient air using sorbent tubes by automated, cryogen-free thermal desorption on accordance with US EPA method TO-17.pdf
TD87.A cryogen-free method for monitoring trace greenhouse gases in air.pdf
TD97.Analysis of polycyclic aromatic hydrocarbons from vehicle exhaust using TD-GC-MS.pdf
TD99.Using the CIA Advantage for automated cryogenfree analysis of canister air and gas.pdf
TD102.Investigation of the performance of sorptive extraction cartbrige for air monitoring.pdf
TD2.Prediction of uptake rates for diffusive tubes.pdf
TD1.Uptake rates for tube-type axial diffusive samplers.pdf
TD6.Common problems with thermal desorption and how to solve them.pdf
TD4.Publications and presentations citing Markes’ products.pdf
TD7.Calibration, Preparing and introducing thermal desorption standards using sorbent tubes.pdf
TD8.Principles of diffusive monitoring.pdf
TD10.Use of diffusive samplers with TD–GC analysis for monitoring VOCs in ambient air.pdf
TD9.Monitoring materials and processes for VOCs at high and trace levels.pdf
TD17.The GC-FID sensitivity of the UNITY thermal desorber.pdf
TD13.Evaluation of the Bio-VOC- a low-cost, simple device for biological monitoring of VOCs in breath.pdf
TD19.Minimising artefacts – Considerations for storage and transport of sorbent tubes.pdf
TD20.Confirming sorbent tube retention volumes and checking for analyte breakthrough.pdf
TD21.Developing and optimising TD methods.pdf
TD22.Selection of gas flows and split ratios during thermal desorption.pdf
TD24.Overcoming the ‘one-shot’ limitation of thermal desorption by the re-collection of desobed samples.pdf
TD25.Calculating atmospheric concentrations from analyte masses retained on sorbent tubes.pdf
TD26.Minimising analytical interference from water during the analysis of sorbent tubes.pdf
TD30.Certified Reference Materials for Analysis of VOCs in air by TD-GC.pdf
TD35.Thermal desorption of dioctyl phthalate and other plasticisers.pdf
TD12.Analytical thermal desorption, History, technical aspects and application range.pdf
TD60.The complementary role of thermal desorption and other sample introduction technologies fo GC.pdf
TD42.Uptake rates for radial diffusive samplers.pdf
TD61.Diffusion-locking technology.pdf
TD75.Liquid standard injection, tube impedance and other factors that may cause discrimination during the calibration of TD methods.pdf
TD64.Simultaneous TD-GC(-MS) analysis of VOCs and SVOCs.pdf
TD79.Air monitoring - the respective advantages and applications of canisters and tubes.pdf
TD85.GC-MS data analysis using ClearView™ background compensation software,dealing with common ions.pdf
TD82.TubeTAG™ - Enhanced tracking of sampleand and tube-related infromation for thermal desorption.pdf
TD83.Using ClearView background compensation software to enhance GC-MS methods for trace compound analysis.pdf
Resumen Notas de Aplicación TD.pdf
Thermal desorption applications_.pdf
Catalogo Markes 2017/18.pdf
0. Introducción.pdf
1B TT24-7xr and TT24-7 Series 2.pdf
2.TD applications.pdf
1. ESP Markes TD products.pdf
3. ESP_Presentación Centri.pdf
4. Centri applications.pdf
5. GCxGC.pdf
6. BenchTOF.pdf
Unity-xr brochure.pdf
UNITY Series 2 BROCHURE Thermal desorber.pdf