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)

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