specific surface area test for silver

V-Sorb 2800S surface area analyzer introduction

V-Sorb 2800S is researched ａnd developed by Gold APP Instruments for single ａnd multi-point BET surface area, also with Langmuir surface area ａnd others related with SSA by using static volumetric principle. Compared with other companies’ analyzers, multi pioneered techs make it’s performance much better, heighten accuracy ａnd consistence of results, enhance measurement stability, all these lead to a leading level in international competitors. Products designed from the user perspective ａnd equipped with fully automated operation, user-friendly interface makes it easy to learn, imported accessories assure stability ａnd prolong life. Perfect design, sophisticated production ａnd strict testing guarantee to meet customers’ real demands. High cost performance of V-Sorb 2800S easily ensure your investment profits ａnd flexible equipped peripheral can satisfy different users’ requests.

V-Sorb 2800S surface area analyzer parameters

Analysis Method: static volumetric nitrogen adsorption principle

Versatility: Adsorption ａnd desorption isotherms, Single ａnd multi-point BET surface area, Average particle diameter estimation, t-plot external surface area, True density analysis, Langmuir surface area, carbon black （STSA）, adsorption constant C.

Measuring Ranges: 0.01m²/g to no known upper limit （surface area）

Accuracy: repeatability errors ≤1%

Vacuum System: V-Sorb unique monolithic manifolds ａnd solenoid valve control system, greatly reduce the dead volume; improve the adsorbate micro-change sensitivity; enhance pore size distribution analysis resolution; decrease connecting points; strengthen sealing performance ａnd prolonged instrument life

Coolant Level Prober: V-Sorb original coolant level control system with temperature probe, ensure the coolant level unchanged when compares with sample cells in the whole analysis process, completely eliminate the analysis errors caused by dead volume change

Sample Treatment: the whole treatment procedures are controlled by dedicated software, as well with a start time preset function which can realize unattended operation at night

Control System: programmable solenoid valve system with high integration ａnd strong anti-interference ability, enhance instrument’s stability ａnd life

Sample Ports: two samples’ analyzing ａnd two samples’ degassing concurrently

Pressure Measurement: imported sectional measuring dual pressure transducer, notably improve the measuring accuracy at low P/P_o point, 0-1000Torr （0-133Kpa）, 0-10Torr （0-1.33Kpa）

Transducer Accuracy: imported silicon thin film pressure transducer, accuracy can reach 0.1% of real reading, better than 0.1% of F.S.（full-scale）, far accurate than Pirani resistance vacuum gauge（general error is 10%-15%）

Partial Pressure: P/Po controllable accuracy range is 5x10^-6-0.998

Ultimate Vacuum: 4x10^-2Pa （3x10^-4 Torr）

Vacuum Pump: built-in bipolar vacuum pump controlled by patented software which can auto control pump’s start/stop 

Sample Types: powders, particle, fiber, flakes ａnd other materials

Adsorbate Gas: high purity nitrogen （≥99.999%）, Ar, Kr, CO, C02, C4H10 etc. non-corrosive gases are optional

Data Acquisition: high-precision ａnd high integration data acquisition modules, minimal error, strong anti-interference ability

Data Reduction: Windows®-based independent developed Gold APP software^TM, perfect versatility, produced full featured ａnd multi-model reports

V-Sorb 2800S surface area analyzer features

A: Vacuum System

1. Unique integral manifolds system, decrease connecting points apparently, reduce leak rate, improve ultimate vacuum.

2. Modularity design can configure as customer requests, benefits future functions extension ａnd instrument maintenance.

3. Germany imported bipolar vacuum pump, low noise, stable working, oil-return prevention; ultimate vacuum can reach 4x10^-2Pa （3x10^-4Torr）.

B: Control System

1. Industry used programmable solenoid valve system, strong anti-interference ability, convenient for installation ａnd uninstallation.

2. Separated analysis ａnd treatment manifolds can prevent foreign matter to contaminate manifolds in sample treatment.

C. Measures for Improving Accuracy

1. Imported silicon thin film capacitive pressure transducer, accuracy can reach 0.1% of real reading, better than 0.1% of F.S. （full-scale）.

2. 0-10Torr （optional） ａnd 0-1000Torr dual pressure transducers, sectional measurement in pressure range can reduce errors in low vacuum, 0-10Torr silicon thin film transducer is highly accurate than Pirani resistance vacuum gauge （general error is 10%-15%）.

3. Unique monolithic manifolds system, decrease connecting points ａnd reduce leak rate apparently.

4. Original stepping coolant level control system, ensure the coolant level unchanged when compares with sample cells in the whole analysis process, completely eliminate the analysis errors caused by dead volume change.

5. Pioneered gas outlet ａnd inlet control system can efficiently prevent sample splash in evacuation ａnd gas inlet process, guarantee clean manifolds ａnd sample weight unchanged, avoid zero ａnd liner drifting caused by transducer’s macro-change.

D. Data Acquisition ａnd Reduction

1. High precision ａnd integration data acquisition module is easy to connect, minimal errors ａnd strong anti-interference ability; standard 485 communication mode is good for analyzer’s applications extension ａnd interconnection, can also conveniently switched to RS232 ａnd USB modes.

2. Multi calculating methods for data reduction provides all-round sample analysis options; powerful data archiving ａnd searching system helps a lot for data management.

V-Sorb 2800S surface area analyzer application

1. Super micro powder, nanomaterials, particle ａnd fiber shaped surface area analysis.

2. Product quality control for powder materials related corporations.

3. Research institutes, universities for BET theory teaching.

4. Fuel cells, catalysts, additives, adsorbent, ceramics, magnetic materials, energy storage materials etc.

5. Other researches concern surface area performance.

Contact info:

Web: www.jinaipu.com/ www.app-one.com.cn

Email: sales@jinaipu.com

Tel.: 00 Ext.810

Fax: 00

Mobile: 0086-18210009838

IMs:

Skype: Gold-APP-Instruments

Yahoo: goldappinstruments@ymail.com

Gtalk: goldappinstruments2008@gmail.com