Overbrook Scientific
Overbrook Scientific
Providers of Analytical Instrumentation
Providers of Instrument Support and
Peripheral Services
of the HTA Line of
Distributors
Autosamplers
HTA Autosamplers
HT300A Liquid Sampler
HT200H Headspace Sampler
HT250D Liquid/Headspace Sampler
HT280T (SPME) Headspace Sampler
HTA Autosamplers
“High Throughput Automation”
Manufactured in Italy
Reputation for quality workmanship
Overbrook Collaborations
Restek
Phenomenex
Rapid Tech
HT300A Liquid Autosampler
HT 300A - Key Features
Replacement sampler- any major manufactured GC
Extremely Rugged
Rotating Turret Design
No picking up of the vial
Handles Front and Back Injectors
Small footprint
Economical - $8,500
Accurate – Reproducibility Typically .3%
Very Easy to use
Nice Looking (Italian)
Control Software Available including Agilent
Chemstation
Headspace
Headspace
Europeans to date have a higher level of
proficiency due to experience
More Widely Used
More Widely Accepted
Blood Alcohol
Residual Solvents
Environmental
R&D
Advantages of Headspace in the
Environmental Laboratory
Pre-screening for VOC’s – Aqueous and Solids
EPA 8260 Aqueous and Solids
Methods 624 Waste Water, 524 Drinking Water
Why Gamble on Sample Throughput?
Protecting a Lucrative Revenue Stream
Decrease Downtime From Contamination
Protect your MS System and Sustain Productivity by
Pre-screening
HT200H Headspace Autosampler
HT200H Headspace Sampler
Key Features
Cost effective ($17,900)
Inexpensive to Operate
Small Footprint
Rotating Turret
Front and Back Injectors - Run Multiple Methods
Direct Injection – No Transfer Line
Leaves Inlet Intact
No Carryover
Very Short Runtime (under 10 min. Including
Naphthalene)
HT250D Dual Autosampler
HT250D Dual Autosampler
Headspace and Liquid Autosampler in one
unit
All the features of HT200H plus features of
HT300A
Easy to change from one mode to the other
All included – no optional extras
Maximizes the throughput on individual GC’s
Small Footprint
Most Economical Dual Unit on the Market
Headspace Methods
EPA Method 8260
Pre-screening
Volatiles partition into vial headspace
1ml gas-tight syringe injection
GC/FID System
Use reduced compound list or reference
calibration (aromatic and chlorinateds)
Dilute appropriately and run by
P&T/GC/MS
Prescreening
Method RSK 175
An umbrella EPA Method for permanent gas
analysis
USEPA Region 1 application notes applied to
MNA
Standards readily available from Scott &
Restek
Analyze Methane/Ethane/Ethene to 2ug/L
Remember Methane is a Reportable
Compound in MA
Methane Ethane Ethene
CCME Method 1310
Canadian Petroleum Hydrocarbon
Method for VPH/GRO
Performance based method allows for
Headspace Preparation to reduce
carryover contamination
PBM Criteria require strict alkane/
aromatic ratios
Pre-screen UST Samples – no reruns
for baseline resolution issues
Volatile Petroleum
Business Opportunities
with Headspace
Business Opportunities
with Headspace
CCME 1310
Materials Testing
USP 467 Residual Solvents
Raw Materials from China
VOA’s (Raw production Material that
cannot be prepared by P&T)
Thank You