Products & ReviewEnvironmental

Bio-VOC Breath Sampler

Name: Bio-VOC Breath Sampler
Rating: 0 (0 reviews)

Markes International Ltd

Non-invasive tube-based biological monitoring

0.0/5.0

|0 Reviews|Be the first to review this product

Request Pricing

Receive your quote directly from the manufacturer.

Ease of Use

After Sales Service

Value for Money

Be the first to leave a review

Description

Non-invasive tube-based biological monitoring

Based on pioneering work carried out at the UK Health & Safety Laboratory, Markes’ BioVOC-2™ breath sampler is a simple-to-use device designed for non-invasive biological exposure monitoring of volatile organic compounds (VOCs). Constructed of safe, non-emitting plastic, the Bio-VOC can be operated with minimal training and without medically qualified staff in attendance.

Each BioVOC-2 is supplied with a disposable cardboard mouthpiece (additional packs of mouthpieces are available). The sampler collects a representative sample of end-tidal air, without contamination or dilution with breath from the bronchial tubes or mouth.

Application NoteSeparations

What is thermal desorption?

In this application note, Markes International offers a guide to the basics of thermal desorption, including the basic principles, applications of the technique, different sampling options and answers how and the benefits of applying thermal desorption across a wide range of scenarios.

18 Dec 2021

Application NoteSpectroscopy

Disease diagnosis via breath and bio-monitoring: Optimizing the analytical performance of sorbent tube sampling and thermal desorption–GC–MS

Breath monitoring has the potential to provide diagnostic solutions for a wide range of diseases. However, its application remains challenging, and many aspects must be taken into consideration when developing and optimizing sampling and analytical parameters.

In this application note, Markes International describes how to optimize the analytical performance of thermal desorption (TD) for those carrying out routine or research monitoring of breath for disease diagnosis. Download the full note below to explore guidance on the major steps in the sampling and laboratory workflow, discover the main analytical challenges, and gain advice on which features and parameter ranges to select.

8 Sept 2021

Application NoteSeparations

Use of Diffusive Samplers with TD–GC Analysis for Monitoring VOCs in Ambient Air

This application note reviews indoor and outdoor air monitoring of volatile organic compounds (VOCs) using tube type diffusive samplers and thermal desorption (TD)–GC analysis. Specific attention is paid to general sampling/analytical procedures, concentration/detection limits, applicable analyte ranges, minimizing artefacts, quality assurance and method limitations.

13 Sept 2016

Application NoteSeparations

Evaluation of the Bio-VOC – A Low-Cost, Simple Device for Biological Monitoring of VOCs in Breath

An easy-to-use device for sampling of volatile organic compounds (VOCs) in breath is described, and its successful use shown for a range of applications.

29 Jul 2014

Application NoteSeparations

Optimizing Analytical Performance and Extending the Application Range of Thermal Desorption for Monitoring Air Indoors and Inside Vehicle Cabins

This application note describes considerations relating to analyte retention efficiency, desorption efficiency, artifacts, band broadening and analyte /system stability during the development and validation of thermal desorption procedures. Examples of optimum method performance in terms of precision, linearity and sensitivity are presented.

22 Jul 2014

Application NoteClinical Diagnostics

Developments in the Determination of Nitrous Oxide using TD–GC

This application note describes the development of a method for the determination of nitrous oxide, sampled both passively and by breath sampling using Markes’ Bio-VOC™.

22 Jul 2014

Product NewsGeneral Lab

Markes Launches New ‘xr’ Series of Thermal Desorption Instruments

9 May 2016

Editorial ArticleLife Sciences

Volatile Breath Analysis in Cancer Diagnostics

The latest advances in breath detection of volatile organic compounds

22 Feb 2016

Product NewsSeparations

Pittcon 2016 – Short Course On Air Monitoring, Technical Presentations and Posters from Markes

26 Jan 2016

Product Overview

Bio-VOC Breath Sampler

Markes International Ltd

0.0/5.0

|0 Reviews

Request Pricing

Links

Markes International Ltd Manufacturer Website

Featured products

Request Quote for All Products

Micro-Chamber/Thermal Extractor
Markes International Ltd
Fast sampling of emissions from products and materials. The Micro-Chamber/Thermal Extractor™ (µ-CTE™) is a versatile and compact unit with up to six small cylindrical chambers that enables the sampling of chemicals released from products or materials. Released volatile and semi-volatile organic compounds (VOCs and SVOCs) are collected onto sorbent tubes for analysis by TD–GC–MS. The capability of the Micro-Chamber/Thermal Extractor has been further extended by the release of the Humidifier Accessory, which supplies the Micro-Chamber/Thermal Extractor with air or gas at up to 50% relative humidity. Features: The four-chamber model has a chamber volume of 114 mL and a maximum temperature of 250°C The six-chamber model has a chamber volume of 44 mL and a maximum temperature of 120°C Volatiles are collected on sorbent tubes for analysis by TD–GC–MS; also compatible with DNPH cartridges for formaldehyde monitoring No sample preparation needed – simply place the material in the chamber A constant flow of heated air or gas ensures rapid production of a representative VOC/SVOC profile Results can be correlated with longer-term reference methods Construction from inert-coated stainless steel – compatibility with reactive or thermally labile chemicals Accessories allow surface-only sampling or permeation testing An optional humidifier accessory (available for both models of microchamber) supplies air/gas at up to 50% relative humidity to allow closer simulation of conditions used in reference tests and to enhance the recovery of some less-volatile polar compounds Benefits: Save time and money by minimising the need for third-party reference tests Convienient and fast – test multiple samples in minutes, not days, for efficient quality control Confidence in results – Data from the Micro-Chamber/Thermal Extractor has been shown to correlate with longer-term reference-test results Avoid tedious and time-consuming sample preparation – simply place your sample in the microchamber Complies with international standard methods ISO 12219-3 (interior air of road vehicles) and ASTM D7706 (rapid screening of VOC emissions from products) Peace-of-mind – you are buying a quality product from the recognised leader in thermal desorption instrumentation Applications: RMicro-Chamber/Thermal Extractor analysing Rapid emissions screening of materials used indoors and in vehicles, especially to aid compliance with regulations and safety labels Product R&D and formulation of lower-emitting products Testing of raw materials and production-line quality control Comparison with competitors’ products Testing permeation of vapours through materials Aroma profiling of foods or fragranced materials
(18)
TD100-xr
Markes International Ltd
Fully-automated analytical thermal desorption instrument for GC or GC–MS
(8)
UNITY-xr
Markes International Ltd
Versatile single-tube analytical thermal desorption unit for GC or GC–MS
(2)
TT24-7
Markes International Ltd
The TT24-7 continuous air/gas monitoring system incorporates two electrically-cooled traps which operate in tandem to ensure 100% data capture. The TT24-7 thermal desorption system is a robust, transportable thermal desorption unit, convenient for installation onsite or in mobile response vehicles as well as conventional laboratories. The TT24-7 interfaces to GC(MS) or process MS technology and incorporates two electrically-cooled traps which operate in tandem to ensure 100% sampling efficiency (no dead times).
(0)
ACTI-VOC
Markes International Ltd
ACTI-VOC™ is a robust low-flow pump for sampling vapour-phase organic compounds (VOCs) onto sorbent tubes for subsequent analysis by thermal desorption (TD). Being lightweight, easy-to-use and intrinsically safe, ACTI-VOC is ideal for personal monitoring and a wide range of other air and gas sampling applications. Optimised for thermal desorption tubes Unlike other personal monitoring pumps on the market, ACTI-VOC is optimised for sampling onto thermal desorption tubes, and automatically compensates for different impedances, ensuring constant flow rates whatever the sorbent packing. Product highlights • Optimised for sampling onto thermal desorption tubes • Compatible with any thermal desorption tube (up to a max. flow of 350 mL/min) • Constant-flow sampling from 20–200 mL/min • Constant-pressure sampling from 1–350 mL/min • Simple screw-operated flow adjustment makes ACTI-VOC easy to calibrate • Intrinsically safe (ATEX-approved) • Long battery life ensures stable performance for over 8 hours • Pocket-sized, lightweight and easy to use • Supplied in a convenient carry-case with charger and accessories
(0)
CIA Advantage-xr
Markes International Ltd
Advanced system for the automated analysis of VOCs in canister air
(3)
Air Server-xr
Markes International Ltd
On-line sampling module for the UNITY-xr™ thermal desorber
(0)
VOC-Mole soil probe
Markes International Ltd
Robust and easy-to-use soil gas sampler. The 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 by thermal desorption (TD)–GC–MS.The VOC-Mole is simple to use and easy to transport, and perfect for any analyst wishing to monitor levels of volatile organic compounds in soil.Features: Organic pollutants pass through holes in the hollow tube and are collected on a sorbent tube. Probe can be left in ground for long periods. Compatible with diffusive and pumped sampling. Use of multiple VOC-Moles in a grid arrangement allows the creation of VOC maps. Special cap prevents ingress of water, wildlife and soil debris. Various pack sizes and probe lengths available. Applications: Surveys of industrial, waste and brownfield sites. Screening of organic pollutants over large areas. Pinpointing of leaks from pipelines and industrial facilities.
(0)
ULTRA-xr
Markes International Ltd
Multi-tube autosampler for the UNITY-xr™ thermal desorber
(2)
TC-20 & TC-20 TAG
Markes International Ltd
Conditioner and dry-purge units for multiple sorbent sampling tubes
(2)
Easy-VOC
Markes International Ltd
Grab-sampler for air sampling. Easy-VOC is a hand-held device that facilitates the rapid ‘grab’ sample collection of small volumes (<500 mL) of air directly onto sorbent tubes without the need for calibrated pumps.Sorbent tubes attach to the end of the Easy-VOC and air/gas is drawn directly onto the tube. Easy-VOC regulates the flow rate independent of the force used to pull the air through.Grab sampling involves collecting volumes of air or gas over a very short period of time. Sampling onto sorbent tubes in this manner offers many advantages over other methods, which can be cumbersome, expensive and inaccurate.Features & Benefits: Easy grab sampling onto sorbent tubes No pump to calibrate 50–500 mL volumes More versatile alternative to canister sampling - compatible with n-C3 to n-C32 Fits ¼-inch and 6 mm o.d. sorbent tubes
(0)
Sorbent sampling tubes
Markes International Ltd
Thermal desorption sorbent sampling tubes for air sampling. Backed up by fast and friendly service, Markes’ tubes provide optimum sampling and analytical performance. Our range includes everything from cost-effective packages of industry-standard tubes to the last word in sorbent tube innovation. Features: Our industry-standard (3½-inch (89 mm) long x ¼-inch (6.4 mm) o.d.) sorbent tubes are available in stainless steel, inert-coated stainless steel and glass. Compatible with thermal desorption instruments manufactured by Markes International, PerkinElmer and Shimadzu. All tubes are permanently labelled with a unique serial number, barcode and sampling flow arrow, so that they are easy to use and track. Further labelling options for tube tracking – includes laser-etching, banding and RFID-tagging (TubeTAG™). Diffusion-locking SafeLok™ options for additional peace of mind. Stringent quality control – our tubes are packed to a tolerance of ±2.5% or better. Application-specific sorbent tubes – optimally packed for applications ranging from air toxics to material emssions testing. Our sorbent tubes can also be ordered conditioned and capped, so that they’re ready for use on arrival. All our sorbent tubes can be supplied: empty for you to pack yourself (or for direct desorption); pre-packed with one sorbent bed for diffusive (passive) monitoring applications; or pre-packed with up to three sorbent beds for pumped (active) monitoring applications. We also supply 4½-inch DAAMS tubes (regular and high-flow, in any of the above materials) – contact us for details.
(0)
Helium leak detector
Markes International Ltd
The helium leak detector is a portable, highly sensitive instrument designed to detect helium carrier gas leaks in thermal desorption and GC systems. Gas leaks are indicated with both an indicator lamp display and an audible alarm. The long, flexible probe makes it convenient to detect small and hard-to-reach gas leaks. Using the detector for gases other than helium is easily achieved by changing the polarity setting. The detector is much more reliable and convenient than using soap solution, and is sufficiently sensitive to detect very small leaks (<1 mL/min).Features: Gases detected: Any gas having a different thermal conductivity than air. Sensitivity: Helium 0.005 mL/min (standard range); 0.0005 mL/min (high range). CE certification: CE certified. Warranty: 1 year (return to base).
(0)
MTS-32
Markes International Ltd
Multi-tube sequential sampler. The MTS-32™ is a compact, portable sampler for the unattended sequential sampling of air onto a series of sorbent tubes. Constant-flow pump technology ensures that the same volume of air is collected onto each tube.The MTS-32 is ideal for analysts needing monitor the concentrations of organic vapours in air as they fluctuate over extended time periods.Features: Sequentially samples on up to 32 × 3½-inch tubes. Constant-flow pump ensures consistent sample volumes regardless of variations in tube impedance. Diffusion-locking technology (Markes’ SafeLok™ tubes or DiffLok™ caps) prevent sample losses and ingress of contaminants. Integral fan continually refreshes the air inside the case, ensuring that the air sampled accurately reflects the immediate environment. Powered by mains electricity or a battery (will run for over 40 hours on battery). Protective gauze across the fan inlet prevents particulates or wildlife from entering. Constructed of low-outgassing components. Field-portable – the MTS-32 can be used virtually anywhere. Applications: Monitoring diurnal fluctuations of pollutants in ambient air. Continuous monitoring of emission events in industrial locations.
(0)
Flowmeter
Markes International Ltd
Accurate and repeatable gas flow measurement. Accurate and repeatable gas flow measurement is fundamental to obtaining good results from your thermal desorption-gas chromatograph. The traditional bubble flowmeter, relying as it does on the reaction time of the operator, is a potential source of error.The digital flowmeter eliminates this source of error and makes gas flow easement easier and more accurate. The flowmeter allows measurement of eight gases: air, argon, argon–5% methane, carbon dioxide, helium, hydrogen, nitrogen and oxygen, in the range 0.1–500 mL/min. Rresolution is 0.1 mL/min and accuracy is typically better than ±2.5%.Features: Range: 0.1–500 mL/min (0.1–275 mL/min for carbon dioxide). Resolution: 0.1 mL/min. Accuracy: 0.4 mL/min or 2.5%.
(0)

Micro-Chamber/Thermal Extractor

Markes International Ltd

Fast sampling of emissions from products and materials. The Micro-Chamber/Thermal Extractor™ (µ-CTE™) is a versatile and compact unit with up to six small cylindrical chambers that enables the sampling of chemicals released from products or materials. Released volatile and semi-volatile organic compounds (VOCs and SVOCs) are collected onto sorbent tubes for analysis by TD–GC–MS. The capability of the Micro-Chamber/Thermal Extractor has been further extended by the release of the Humidifier Accessory, which supplies the Micro-Chamber/Thermal Extractor with air or gas at up to 50% relative humidity. Features: The four-chamber model has a chamber volume of 114 mL and a maximum temperature of 250°C The six-chamber model has a chamber volume of 44 mL and a maximum temperature of 120°C Volatiles are collected on sorbent tubes for analysis by TD–GC–MS; also compatible with DNPH cartridges for formaldehyde monitoring No sample preparation needed – simply place the material in the chamber A constant flow of heated air or gas ensures rapid production of a representative VOC/SVOC profile Results can be correlated with longer-term reference methods Construction from inert-coated stainless steel – compatibility with reactive or thermally labile chemicals Accessories allow surface-only sampling or permeation testing An optional humidifier accessory (available for both models of microchamber) supplies air/gas at up to 50% relative humidity to allow closer simulation of conditions used in reference tests and to enhance the recovery of some less-volatile polar compounds Benefits: Save time and money by minimising the need for third-party reference tests Convienient and fast – test multiple samples in minutes, not days, for efficient quality control Confidence in results – Data from the Micro-Chamber/Thermal Extractor has been shown to correlate with longer-term reference-test results Avoid tedious and time-consuming sample preparation – simply place your sample in the microchamber Complies with international standard methods ISO 12219-3 (interior air of road vehicles) and ASTM D7706 (rapid screening of VOC emissions from products) Peace-of-mind – you are buying a quality product from the recognised leader in thermal desorption instrumentation Applications: RMicro-Chamber/Thermal Extractor analysing Rapid emissions screening of materials used indoors and in vehicles, especially to aid compliance with regulations and safety labels Product R&D and formulation of lower-emitting products Testing of raw materials and production-line quality control Comparison with competitors’ products Testing permeation of vapours through materials Aroma profiling of foods or fragranced materials

(18)

What is thermal desorption?

Disease diagnosis via breath and bio-monitoring: Optimizing the analytical performance of sorbent tube sampling and thermal desorption–GC–MS

Use of Diffusive Samplers with TD–GC Analysis for Monitoring VOCs in Ambient Air

Evaluation of the Bio-VOC – A Low-Cost, Simple Device for Biological Monitoring of VOCs in Breath

Optimizing Analytical Performance and Extending the Application Range of Thermal Desorption for Monitoring Air Indoors and Inside Vehicle Cabins

Developments in the Determination of Nitrous Oxide using TD–GC

Markes Launches New ‘xr’ Series of Thermal Desorption Instruments

Volatile Breath Analysis in Cancer Diagnostics

Pittcon 2016 – Short Course On Air Monitoring, Technical Presentations and Posters from Markes

Product Overview

Bio-VOC Breath Sampler

Links

Featured products

Micro-Chamber/Thermal Extractor

TD100-xr

UNITY-xr

TT24-7

ACTI-VOC

CIA Advantage-xr

Air Server-xr

VOC-Mole soil probe

ULTRA-xr

TC-20 & TC-20 TAG

Easy-VOC

Sorbent sampling tubes

Helium leak detector

MTS-32

Flowmeter

Micro-Chamber/Thermal Extractor

TD100-xr

UNITY-xr

TT24-7

ACTI-VOC

CIA Advantage-xr

Air Server-xr

VOC-Mole soil probe

ULTRA-xr

TC-20 & TC-20 TAG

Easy-VOC

Sorbent sampling tubes

Helium leak detector

MTS-32

Flowmeter