产品特点:
ESP – Standards Preparation Software
The Entech Standards Preparation (ESP) software for Windows provides support in preparing standards using dynamic or static dilution. Static dilution allows standards to be made from neat compounds using syringe transfer into intermediate gas dilution bottles. ESP software performs the complex calculations necessary to make multi-component mixtures at PPM or PPB levels.
Features
● Makes PPB Level Standards
Using an intermediate glass dilution bottle.
● Makes PPM Level Standards
Using direct injection of liquids into cylinders or canisters.
● Avoids use of Methanolic Standards
● Eliminates Large Methanol Peak
Which can otherwise attenuate MS response.
● Methanol as a Target Compound
Allows methanol to be added. (1990 CAAA HAPS)
● Water-Soluble Polar VOC Mixtures
Prevents gas-phase preparative losses on surface of intermediate dilution vessel.
Tips to Improve Accuracy of Statically Prepared Standards
● To reduce potential measurement error, select syringes or manipulate calculations using ESP so that transfer volumes are at least 50% of the volume of the selected syringe.
● Include a compound from a calibrated cylinder standard in the statically prepared mixture so dilution accuracy can be verified.
● Compare the response from previous preparations of the same standard to ensure precision.
● When making liquid mixtures in vials, add the heaviest compound first to avoid losing light compounds during the preparation process. Use large amounts of each standard (100 to 500ul) to reduce relative evaporative loss.
订购信息:
DESCRIPTION | PART # | UNIT |
4600D Syringe Spiking Option | 4600-02 | 1 |
Includes: | ||
Injection Tee | 30-04500 | 1 |
Syringe Injection Cap | 36-71540 | 1 |
Septa | 36-71710 | 5pk |
1/4”Port Adapter | 30-04046 | 1 |
DESCRIPTION | PART # | UNIT |
Static Dilution Standard Prep Kit | 07-41000 | 1 |
Includes: | ||
ESP Windows Software | 01-ESP | 1 |
2 Liter Gas Dilution Bottle | 07-40010 | 1 |
Replacement Mini-nert Cap | 07-40020 | 1 |
Replacement Mini-nert Septa | 07-40031 | 5pk |
10μL Syringe | 07-2010U | 1 |
100μL Syringe | 07-2100U | 1 |
1cc Syringe | 07-2001M | 1 |
10cc Syringe | 07-2010M | 1 |
DESCRIPTION | PART # | UNIT |
Neat Internal Standard Kit 1 | 53-40000 | 1 |
Includes: | ||
100mL Bromochloromethane | 53-40010 | 1 |
100mL Difluorobenzene | 53-40020 | 1 |
1mL Chlorobenzene-d5 | 53-41050 | 2pk |
100mL Bromofluorobenzene (BFB) | 53-40030 | 1 |
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