Overbrook Scientific

Overbrook Scientific  Providers of Analytical Instrumentation  Providers of Instrument Support and Peripheral Services  Distributors of the HTA Line of 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