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Overbrook Scientific
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Overbrook Scientific Providers of Analytical Instrumentation
Providers of Instrument Support and Peripheral Services Distributors of the HTA Line of Autosamplers
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HTA Autosamplers HT300A Liquid Sampler HT200H Headspace Sampler
HT250D Liquid/Headspace Sampler HT280T (SPME) Headspace Sampler
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HTA Autosamplers “High Throughput Automation” Manufactured in Italy
Reputation for quality workmanship
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Overbrook Collaborations
Restek Phenomenex Rapid Tech
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HT300A Liquid Autosampler
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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
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Headspace
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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
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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
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HT200H Headspace Autosampler
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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)
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HT250D Dual Autosampler
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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
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Headspace Methods
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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
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Prescreening
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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
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Methane Ethane Ethene
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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
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Volatile Petroleum
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Business Opportunities with Headspace
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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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Thank You
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