Compliance with US EPA Method TO-15

 Building on the success of Air Server for automated on-line sampling of air/gas streams, the CIA 8 accessory connects to any Markes UNITY or ULTRA thermal desorber(TD) to provide method compliant automation for canisters, Tedlar bags and other whole air/gas containers.


The CIA 8 accessory comprises an 8-channel Air Server complete with an inert thermostatted flow path, and internal standard addition as specified in US EPA Method TO-15 for volatile Air Toxics. New improved stream selection valves eliminate sample carryover even when monitoring over a wide concentration range.

Key Facts: 

• Lower running costs: Cryogen-free operation means lower running costs and higher uptime. 
  
  
• Best possible detection limits: Unmatched chromatographic performace (narrow peak widths), even under splitless desorption conditions and without on-column focusing, ensures optimum sensitivity and resolution. Low ppt concentrations can be reliably determined. 
  
  
• Improved productivity: UNITY-CIA 8 systems offer unattended sequential analysis of up to 8 canisters/Tedlar bags. Extensive data shows reliable operation in remote monitoring stations over extended periods of several years.
  
  
• Data validity: Internal standard addition plus excellent analytical precision ensure data validity and repeatable analysis.
  
  
• All applications on a single platform: UNITY-CIA 8 offers quantitative and cryogen-free retention, even of ultra-volatile species such as freons and C₂ hydrocarbons, together with complete recovery across the air toxics boiling range. Labile, odorous analytes, such as H₂S and mercaptans may also be measured at sub-ppb concentrations. Markes systems are compatible with the highest boiling compounds that can be recovered from canisters.
  
  
• Compatible with humid samples: Versatile water management options and thermostatted heating of the sample flow path eliminate risk of condensation and ensure quantitative results with humid samples. 
  
  
• EPA Method TO-17 compatible. UNITY-CIA 8 systems incorporate low-cost tube monitoring of air toxics as a complement to regular canister samples; UNITY-CIA 8 systems allow EPA Method TO-17-compliant desorption of a single sorbent tube. This tube desorption facility can be automated by adding a 100-tube ULTRA TD autosampler.
  
  

Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:

• Brochure - UNITY, ULTRA, Air Server thermal desorption systems
  
  
• TDTS 27 - Sampling Methods for Monitoring VOCs in Air by Thermal Desorption-GC(-MS)