5800A SPDU

Sorbent Pen Desorption Unit

Sorbent Pen “On Column” Desorber with Advanced Capillary Column Focusing and Heavy Residual Backflushing

Click to Open Selection Guide of Sorbent Pen Headspace Techniques
LabelVaseF-VaseFeveLVSH

LABEL

VASE

Flash-VASE

FEVE

LVSH/X-LVSH

Full Name
Vacuum Assisted Sorbent Extraction
Flash-VASE
Full Evaporative Vacuum Extraction
(Extremely) Large Volume Static Headspace
Sorbent Pen Type
HSP
FSP
FSP
ASP
Vial Size
20, 40, 125mL
2, 6, 20mL
2, 6 mL
250, 500, 1000mL
When to Use
Liquid or Solid Sample Compositional Analysis. SPME Alternative
Samples with low volatile contents (solids, powders, polymers, packaging, oils)
Volatile Matrix with low solid contents (water, beverages, solvent extracts)
Measurement of equilibrated headspace to determine partition coefficients of aroma compounds.
Extraction Technique
Vacuum, Diffusive, Closed System, Mechanical Agitation
Diffusive Vacuum Thermal Extraction, Closed System
Matrix Evaporative Transfer followed by heated, Diffusive Extraction in Open System, Matrix eliminated
Dynamic, Fully equilibrated headspace, Static, Open System
Vial Temp Range
30° to 70° C
30° to 280° C
30° to 280° C
30° to 70° C
BP Range
-50° to 450° C
-50° to 550° C
80° to 550° C
0° to 450° C
Water Management
Cold tray dehyd., Dry Purge, Split Inj. Capillary Focusing Trap
Cold tray dehyd., Dry Purge, Split Inj.
Vacuum Removal
Dry Purge, Split
Typical Pen Cycle Times
200-2000
200-1000
500-2000
100-200 (except not for disposible / replaceable inlet filter)
Competitive Technologies Displaced
SPME, SPME Arrow, SPE, SBS
Micro Chamber, Direct Thermal Extraction, DHS
SBSE, Hi-Sorb, Full Immersion SPME
All other non-static, low sensitivity techniques
Typical Sorbent Combinations
Tenax, Tenax / CPX, PDMS GB / Tenax, Tenax / Carboxen
Tenax, Tenax / CPX, PDMS GB / Tenax, Tenax / Carboxen
PDMS GB / Tenax, Tenax / CPX
PDMS / Tenax, Tenax / Carbopack X
Common Applications
Food, Beverage, Flavor, Aroma, Water, Consumer Products
Volatiles / Odors in Packaging, Polymers, Powders, Foams, Synthetics, Natural Products, Cannabis, Heavy Oils
SVOCs in Water, Flavors / Aromas in Thermally Labile samples, Pesticides in foods.
Aroma / Flavor Profiling

Definitions:

Open System - Unretained compounds/gases allowed to pass through sorbent for removal by pump/vacuum.

Closed System - Completely isolated during extraction, so breakthrough of even the lightest compounds isn't possible. Allows recovery of wider boiling point range.

The 5800A SPDU is a thermal desorption system designed to reliably deliver samples collected on Sorbent Pens™ to a GC or GCMS. A “direct to GC” approach is used to simplify the support strategy, while achieving truly remarkable chromatographic resolution during splitless or split injections into a GCMS. Most other thermal desorption systems desorb samples far removed from the GC, requiring rotary valves, long transfer lines, and additional trapping and desorption stages to finally deliver the sample to the GC column. Long sample path lengths often result in reduced recoveries, both due to the addition of reactive surfaces, and the eventual deposition of very low vapor pressure compounds that will likely affect the transport of target compounds to the GC. The 5800A eliminates these concerns by desorbing samples directly into the GC, allowing consistent analytical results with minimal maintenance. The 5800A supports multiple injection modes including SPLIT, Tandem-SPLIT™, and SPLT/SPLTLESS to optimize sensitivity and GC column loading while minimizing the on column injection bandwidth. All 4 types of Sorbent Pens are supported (HSP, FSP, DSP, & ASP), while maintaining a vertical position of the Sorbent Pens through the entire heating and cooling cycle to prevent the formation of gaps along the walls of the tube which would otherwise increase channeling during subsequent sampling events. The 5800A supports 2 split ports that are used for split injection, bakeout, backflushing, and focusing operations. The 5800A SPDU can be used without automation by introducing Sorbent Pens to the 5800A one at a time, or the SPR40A Sample Prep Rails can automate the analysis of up to 120 Sorbent Pens unattended.

  1. 5800A-2025
  2. 5800SPDU_diagramGCEPC_HighRez_2023
  • Direct thermal desorption of Sorbent Pens into all 3 major GC brands

  • Prevents contact of low vapor pressure compounds with transfer lines and rotary valves for improved system hygiene

  • Performs injections using SPLIT, Tandem SPLIT, and SPLT/SPLTLESS Modes for maximum flexibility, dynamic range, and sensitivity

  • Backflushes the focusing column to remove heavy, unwanted compounds to reduce both run times and thermal stress on GC columns

  • New, High Performance “HiPer Liner” maximizes transfer of compounds to GC under low or Splitless flowrates

  • Supports Tandem-SPLIT™ injections for dramatically reduced carrier gas consumption when performing high split injections

  • Maintains sorbent devices (Pens) in the vertical position to avoid “wall-gaps” when sorbents are cooled in a horizontal tube

  • Entech SPRINT control software orchestrates either manual or multi-sample automated analysis

  • Takes thermal desorption technology to the next level of consistency and performance

The SideBar from Entech is a rail organizer that uses the same clamping system found on the Entech SPR40(A) and VXB Rail Systems. The SideBar holds the SPR-MCA Controller, the 3801A Thermal Conditioner, a few Pens or even a whole tray of Pens in close proximity to the 5800A SPDU, to support an organized approach for manual Pen analysis. The SideBar stays out of the way of liquid autosamplers and other equipment on the GC/GCMS, to make it easier to go back and forth between applications. Bring the power of the Sorbent Pen into your laboratory using the SideBar, and then move up to the fully automated SPR40A Robotic Autosampler when sample quantities increase. Not available for ASP/DSP applications due to lack of standard spiking support.

Original 5800 SPDUs used 1mm ID columns to perform SPLIT Mode injections, but unfortunately this “filmless” column did not allow effective residual capture and backflush removal. The 5800A SPLIT Mode uses short 15cm x 0.53mm ID columns with 0.25 to 5um films depending on the boiling point range of target compounds. For volatiles analysis, a thicker film is used to capture compounds during preheat gas expansion for splitting between the backflush column and the GC column.

The SPLT/SPLTLESS Mode uses a Capillary Focusing Column where specific film thicknesses, lengths, and GC oven temperatures combine to completely retain selected compounds during initial Pen desorption. A desorb flow of 2-10cc/min is used to deliver compounds through the Focuser, so during the 1-5 minute desorption the unretained compounds are split from 2:1 to 10:1 as they are transferred to the GC Column. This allows desorption rates that are 2-10x higher than GC Column flow rates, with low split recovery of lighter compounds and splitless recovery of compounds retained on the Capillary Focusing Column. Changing the length and film thicknesses of the Focuser and GC Column can optimize the range of compounds that can transfer fully splitless. No other thermal desorption system offers the GC Chemist so much power and flexibility to optimize method performance!!! The Focusing Column can be changed without affecting the vacuum in the mass spectrometer. This Mode uses the High-Performance “HiPer Liner” to maximize compound transfer to the Focuser and GC Columns at low flow rates.


Diagram: Understanding Sorbent Pen Headspace Equipment (click to open)



GC Model Mounting Kits


Click to open parts list




Image (click to enlarge) Description Part # Unit link to product
ThermoMountingBracket_DEC2020.1 Thermo® 1310 / 1610 GC 5800-GC-TH EA Product Page
5800bracket_agilent2019 Agilent® 6890 / 7890/ 8890 GC 5800-GC-AG EA Product Page
ShimadzuMountingBracket_DEC2020.1 Shimadzu® 2010 GC 5800-GC-SH EA Product Page
Agilent 6890/7890/8890 GC Back Detector Position 5800-GC-AG-BD EA

Split Manifold and Restrictor Kit


Click to open parts list




Image (click to enlarge) Description Part # Unit link to product
Split Manifold Enclosure 5800-SPLT-M EA Product Page
Split Manifold Cap 5800-SPLT-C EA Product Page

Split Manfiold #3 Restrictor

5800-SPLT-R3 EA Product Page
Split Manifold #4 Restrictor 5800-SPLT-R4 EA Product Page
Split Manifold #5 Restrictor 5800-SPLT-R5 EA Product Page
Split Manifold #6 Restrictor 5800-SPLT-R6 EA Product Page
Split Manifold #7 Restrictor 5800-SPLT-R7 EA Product Page
Split Manifold Plug 5800-SPLT-PLUG EA Product Page
Split Manifold O-ring Kit 5800-SPLT-OR-KIT EA Product Page

SideBar Organizer


Click to open parts list




Image (click to enlarge) Description Part # Unit link to product
SP-SIDEBAR-TH.199 SideBar Assembly for Thermo® GC SIDEBAR-TH EA Product Page
SP-SIDEBAR-AG.192 SideBar Assembly for Agilent® GC SIDEBAR-AG EA Product Page
SP-SIDEBAR-SH.197 SideBar Assembly for Shimadzu® GC SIDEBAR-SH EA Product Page

5800 Survival Kit

Click to open parts list




Image (click to enlarge) Description Part # Unit link to product
5800-LNR-HD-1MM.171 HSP/FSP/DSP/ASP SPLITLESS Quartz Liner 5800-LNR-HD-1MM EA Product Page
5800-LNR-HD-2MM.173 HSP/FSP/DSP/ASP SPLIT Quartz Liner 5800-LNR-HD-2MM EA Product Page
5800-LNR-SPRING.169

Liner Spring

5800-LNR-SPRING 2pk Product Page
5800 Insert Locking Pin 5800-INSERT-LOCPIN EA
Column Insertion Tool 5800-COL-INSERTTOOL EA
5800-INSERT.168 5800 Silonite Coated Metal Insert for all Pen Types 5800-INSERT EA Product Page
5800 Spring Insertion Tool 5800-SPRING-INSERTTOOL EA
5800 Liner/Insert Extraction Tool 5800-LNR-EXTTOOL EA

SP-Whiskey-header-1
Whiskey Vacuum Assisted Sorbent Extraction
HS-raspberry-header
Raspberry by Vacuum Assisted Sorbent Extraction
SP-Gum-header-1

Gum

Gum by Vacuum Assisted Sorbent Extraction
HS-dark-chocolate-header-1
Dark Chocolate by Vacuum Assisted Sorbent Extraction
HS-eggnog-header-1
Eggnog Vacuum Assisted Sorbent Extraction
HS-Milk-header-1
Milk by Vacuum Assisted Sorbent Extraction
SP-kinetic-header-1
Drinking Water by Vacuum Assisted Sorbent Extraction
HS-cookie-header
Cookie by Vacuum Assisted Sorbent Extraction
HS-rum-header-1

Rum

Rum Vacuum Assisted Sorbent Extraction
HS-apple-header
Apple by Vacuum Assisted Sorbent Extraction
HS-mushroom-header
Mushroom Vacuum Assisted Sorbent Extraction
HS-brie-header
Brie by Vacuum Assisted Sorbent Extraction
HS-cashew-header-1
Cashew by Vacuum Assisted Sorbent Extraction
HS-coffee-header
Coffee by Vacuum Assisted Sorbent Extraction
SP-vaccumn-water-header
Drinking Water by Vacuum Assisted Sorbent Extraction
HS-mango-header
Mango by Vacuum Assisted Sorbent Extraction
HS-peanut-butter-header
Peanut Butter by Vacuum Assisted Sorbent Extraction
HS-strawberry-header
Strawberry by Vacuum Assisted Sorbent Extraction

Download Technical Information Document

Download Technical Information Document

Please complete the form to download the VASE Technical Information Document or to request a system quote.