The digital polarimeters designed and manufactured by Rudolph Research Analytical come under the Autopol series. The Autopol series of digital polarimeters is widely used in the research and production departments of industries such as pharmaceuticals, chemicals, cosmetics, essential oils, and many more.
RRA’s versatile product line-up includes multiple types of polarimeter that greatly differ in capabilities. This makes sure that they have a model suitable for every application, right from general-purpose research to highly technical analysis.
To cater to all possible fields of application, RRA offers different models with each one having certain specific features necessary for that application. The following are the different types of polarimeters by Rudolph Research Analytical:
| AUTOPOL I Polarimeter Specifications | |
| Measuring Mode | Optical Rotation Specific Rotation Specific Rotation Plus Concentration User Defined Scale Sugar Degrees °Z(ISS) |
| Measuring Scale | Degrees Arc Optical Rotation |
| Resolution | 0.01° Arc Optical Rotation 0.01% Concentration 0.01 Specific Rotation |
| Accuracy | 0.01° Arc Optical Rotation 0.03°Z (ISS) Sugar Degrees |
| AP Acccuracy Option | Resolution: 0.001° Arc Optical Rotation Reproducibility: 0.002° Arc Optical Rotation Accuracy ±0.004° Arc Optical Rotation |
| AP Resolution Option | AP Selectable Resolution: 0.01, 0.001° Arc |
| Reproducibility | 0.01° Arc Optical Rotation |
| Measuring Range | ± 89° Arc Optical Rotation ± 999.99° Arc Specific Rotation 0-99.9% Concentration |
| Optical Wavelengths | 589nms |
| 21 CFR Part 11 Compliant Software | Yes with optional PC Software |
| Temperature Control | By external water bath (Standard) TempTrol™ Automatic Electronic Heating & Cooling 15° – 40°C ±0.2° (Optional) |
| Data Storage | 32 GB Non-removable Compact Flash |
| Communication Interface | 3- USB Ports, 1-USB 3.0 2- RS232 serial ports, Ethernet Port for Network Communication |
| Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to O.D. 4.0) |
AUTOPOL II Specifications | |
Measuring Mode | Optical Rotation |
Measuring Scale | Degrees Arc Optical Rotation |
Resolution | 0.01° Arc Optical Rotation |
Accuracy | 0.01° Arc Optical Rotation |
AP Acccuracy Option | Resolution: 0.001° Arc Optical Rotation |
AP Resolution Option | AP Selectable Resolution: 0.01, 0.001° Arc |
Reproducibility | 0.01° Arc Optical Rotation |
Measuring Range | ± 89° Arc Optical Rotation |
Optical Wavelengths | 589nm |
Wavelength Selection | Touchscreen Selectable: |
21 CFR Part 11 Compliant Software | Yes with optional PC Software |
Temperature Control | By external water bath (Standard) |
Data Storage | 32 GB Non-removable Compact Flash |
Communication Interface | 3- USB Ports, 1-USB 3.0 |
Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to OD 4.0) |
AUTOPOL III Specifications | |
Measuring Mode | Optical Rotation |
Measuring Scale | Degrees Arc Optical Rotation |
Resolution | 0.001° Arc Optical Rotation |
Accuracy | 0.002° Arc up to 1° |
AP Acccuracy Option | Accuracy ±0.002° up to 10° |
AP Resolution Option | AP Selectable Resolution: 0.01, 0.001, 0.0001° Arc |
Reproducibility | 0.002° Arc Optical Rotation |
Measuring Range | ± 89° Arc Optical Rotation |
Optical Wavelengths | 589nm |
Wavelength Selection | Touchscreen Selectable: |
21 CFR Part 11 Compliant Software | Yes with optional PC Software |
Temperature Control | By external water bath (Standard) |
Data Storage | 32 GB Non-removable Compact Flash |
Communication Interface | 3- USB Ports, 1-USB 3.0 |
Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to O.D. 4.0) |
| AUTOPOL IV Specifications | |
| Measuring Mode | Optical Rotation Specific Rotation Specific Rotation Plus Concentration User Defined Scale Sugar Degrees °Z(ISS) |
| Measuring Scale | Degrees Arc Optical Rotation |
| Resolution | 0.001° Arc Optical Rotation 0.001% Concentration 0.001 Specific Rotation |
| Accuracy | 0.002° up to 1°, 0.2% up to 5°, 0.01° above 5° |
| AP Accuracy Option | Autopol IV Single ±0.002° Arc Optical Rotation Autopol IV Dual ±0.002° Arc Optical Rotation Autopol IV Six Wavelength Accuracy (546nm and 589nm): ±0.002° Arc Optical Rotation |
| AP Resolution Option | Selectable Resolution: 0.01, 0.001, 0.0001° Arc |
| Reproducibility | 0.002° Arc Optical Rotation |
| Measuring Range | ± 89° Arc Optical Rotation, ± 999.99 Specific Rotation, 0-99.9% Concentration |
| Wavelength Selection | Touchscreen Selectable: 1, 2 and 6 |
| 21 CFR Part 11 Compliant Software | Yes with optional PC software |
| Temperature Control | By external water bath (Standard) TempTrol™ Automatic Electronic Heating & Cooling 15° – 40°C ±0.2° (Optional) |
| TempTrol™ Accuracy | ±0.2°C (optional) |
| Data Storage | 32 GB Non-removable Compact Flash |
| Communication Interface | 3 – USB Ports, 1-USB 3.0, 2-RS232 Ports, Ethernet Port for Network Connection |
| Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to O.D. 4.0) |
| Temperature Compensation | Temperature of the sample can be corrected to a reference temperature |
AUTOPOL V Specifications | |
Measuring Mode | Optical Rotation |
Measuring Scale | Degrees Arc, % Concentration |
Measuring Range | ± 89.9° Arc Optical Rotation |
Resolution | 0.001° Arc Optical Rotation |
Reproducibility | 0.002° Arc |
Standard Model Accuracy | 0.002° up to 1°, 0.2% up to 5°, 0.01° above 5° |
AP Model Specs | Accuracy (546nm and 589nm): ±0.002° Arc over ±89.9° Arc |
Optical Wavelengths | 365nm, 405nm, 436nm, 546nm, 589nm, 633nm |
Wavelength Selection | Touchscreen Selectable: 6 standard |
Acid Resistance | Hastelloy™ measurement cell and Silco Steel™ |
Data Storage | 32 GB Non-removable Compact Flast |
Communication Interface | 3 – USB Ports |
Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01 % (up to O.D. 4.0) |
AUTOPOL® V PLUS Specifications | |
Measuring Mode | Optical Rotation |
Measuring Scale | Degrees Arc, % Concentration |
Measuring Range | ± 89° Arc Optical Rotation |
Resolution | 0.001° Arc Optical Rotation |
Reproducibility | 0.002° Arc |
Standard Model Accuracy | 0.002° up to 1°, 0.2% up to 5°, 0.01° above 5° |
AP Model Accuracy and Resolution (Autopol V Plus Single) | Accuracy: ±0.002° Arc over ±89.9° Arc |
AP Model Accuracy and Resolution (Autopol V Plus Six Wavelength) | Accuracy (546nm and 589nm): ±0.002° Arc over ±89.9° Arc |
Optical Wavelengths | 365nm, 405nm, 436nm, 546nm, 589nm, 633nm |
Wavelength Selection | Touch Screen Selectable: 6 Standard |
TempTrol™ Range | Automatic Electronic Heating & Cooling 15°-35°C |
TempTrol™ Accuracy | ± 0.2°C |
Acid Resistance | Hastelloy™ measurement cell and Silco Steel™ sample chamber (standard) |
Measurement Time | 4°/sec slewing rate & 5 sec nominal settling time |
Light Source | Tungsten-halogen 6V, 20W, avg. 2,000 hr life |
Communication Interface | 3 USB Ports, 2 RS232 Ports, Ethernet Port for Network Connection |
Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to O.D. 4.0) |
AUTOPOL VI | |
Measuring Mode | Optical Rotation |
Measuring Scale | Degrees Arc, % Concentration |
Measuring Range | ± 89° Arc Optical Rotation |
Resolution | 0.0001° Arc Optical Rotation |
Reproducibility | 0.0002° Arc |
Accuracy | 0.0003° |
Optical Wavelengths | 365nm, 405nm, 436nm, 546nm, 589nm, 633nm |
Wavelength Selection | Touch Screen Selectable: 6 Standard |
Data Storage | 32 GB Non-removable Compact Flash |
Communication Interface | 3 USB Ports, 2 RS232 Ports, Ethernet Port for Network Connection |
Automatic Sensitivity Control | Measures samples with transmittance as low as 0.01% (up to O.D. 4.0) |
Each Rudolph polarimeter has its own features that make it stand apart from the competitors. The following is a list of the stand-out features each model has:
Each digital polarimeter model in the Autopol series offers different wavelength options. Autopol VI, the flagship model, offers six standard wavelengths including 365nm, 405nm, 436nm, 546nm, 589nm, and 633nm. The most basic variant, the Autopol I, has a single wavelength and is ideal for budget-focused laboratories and research institutes. This model measures optical rotation at 589nm which is often referred to as Sodium D-Line.
All Autopol models are equipped with the ability to control the temperature of the samples. This is achieved by means of the rubber gasket in the polarimeter door. This arrangement allows tubing to be connected from an external temperature-controlled water bath to the jacket of a jacketed polarimeter sample tube.
Most manufacturers design digital polarimeters in a way that they accept only special sample cells, with a maximum length of up to 100 mm. However, Rudolph polarimeters have a design that can accommodate sample cells of up to 200 mm long.These cells offer an advantage by having twice the sensitivity as the 100 mm cells. All RRA sample cells are designed to be compliant with NIST standards.
Rudolph polarimeters have a Tungsten-Halogen lamp that allows selection of any wavelength in the visible spectrum by means of a narrow band multi-layer interference filter. The lamp is compact, robust, reliable, economical, and has a high intensity.
Agaram Industries is the exclusive distributor of Rudolph polarimeters in India. To get a quotation with the digital polarimeter price, you can fill up this form or send an email to sales@agaramindia.com .
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