Introduction
A semi automatic polarimeter is an optical instrument used to measure the optical rotation of optically active substances, with automated features that assist the measurement while retaining operator involvement, and it is used in the pharmaceutical, chemical, and food industries for quality control and analysis. Like other polarimeters, it measures the angle by which plane-polarized light is rotated when it passes through an optically active sample, such as a solution of sugar, amino acids, or a chiral drug; in a semi automatic polarimeter, the instrument assists in detecting the endpoint and displaying the rotation value, using an electronic detection system and a digital display, while the operator prepares the sample and, in some models, manually adjusts the analyzer, and the measured rotation is used to calculate the specific rotation and the concentration of the sample. Semi automatic polarimeters provide greater convenience and accuracy than fully manual instruments, while being more economical than fully automatic models, and they are used in the pharmaceutical industry for quality control of chiral compounds and for determining purity; in the food and beverage industry for measuring sugar content and verifying product quality; in the chemical industry for characterizing optically active materials; in research and education; and in clinical and forensic laboratories, and they are available with various scales and sample cell options, with features such as digital displays and temperature indication. With their balance of automation and simplicity, semi automatic polarimeters are practical instruments for optical rotation measurement.
Semi-T20utomatic Polarimeter LPMR-T2020
Semi-automatic polarimeter comes with 5.6 inch touch screen, has one touch reset function to automatically restore the polarimeter to the original settings. The long-life with 589 nm fil...
Standards
GB/T 613-2007-Chemical reagent-General method for the determination of specific optical rotation
Complies with the above standards, but is not limited to them.
Features
1. Semi-automatic polarimeter for measuring optical rotation with assisted measurement.
2. Combines manual sample handling with automatic angle detection for convenience.
3. Suitable for pharmaceutical, chemical, food, sugar and educational laboratories.
4. Includes polarimeter unit, sample tube, light source, digital display and manual.
5. Supports specific rotation, concentration and optical purity measurement.
FAQ
Q1: What testing scenarios is this polarimeter mainly applied to?
A: The semi-automatic polarimeter is used in pharmaceutical manufacturing, chemical analysis, food and beverage testing, sugar industry, essential oil analysis and educational laboratories to measure the optical rotation of optically active substances including sugars, amino acids, pharmaceuticals, essential oils and chiral compounds with semi-automated operation. It supports pharmaceutical product purity and concentration testing per pharmacopoeial requirements, sugar content and quality analysis, chemical compound optical purity determination, essential oil and fragrance analysis, chiral compound characterization, and educational laboratory use. The semi-automatic design provides automatic angle detection while retaining manual sample handling, offering a balance of convenience and cost-effectiveness. It is essential for pharmaceutical, chemical, food, sugar and educational laboratories requiring optical rotation measurement for product quality control, purity assessment, concentration determination, chiral analysis and regulatory compliance, where semi-automatic operation provides reliable, convenient measurement of optical activity for identity, purity and concentration verification of pharmaceuticals, sugars, amino acids, essential oils and other optically active compounds in industrial and educational settings.
Q2: What standards does the polarimeter comply with?
A: The semi-automatic polarimeter supports methods referenced in USP, EP and ChP monographs for optical rotation, ICUMSA for sugar, ISO standards for specific rotation, and relevant GB/T standards. The hardware complies with IEC 61010 laboratory safety standards. Calibration should use certified quartz reference plates traceable to international standards.
Q3: What is the warranty period for the whole machine and key components?
A: The whole polarimeter is covered by a 12-month warranty. The optical system, detector, light source, angle measurement and controller are covered, while sample tubes, lamps and quartz plates are accessories or consumables. Damage from improper use, dropping or unauthorized repair is excluded. Extended service contracts are available.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained analysts familiar with polarimetric measurement, sample preparation and data interpretation. We provide operation manuals, training and application support. Proper sample tube filling, temperature control, calibration and result calculation are important for accurate optical rotation measurements.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Calibration with certified quartz reference plates recommended every 6-12 months. Routine verification with a standard before each analytical batch for regulated work. Light source intensity checked periodically. Sample tube condition verified. Full system performance verification annually.
Q7: Are supporting consumables universal?
A: Sample tubes, lamps and quartz calibration plates are available from specialized suppliers, though instrument-specific parts should be verified. Long-term consumable cost is low to moderate depending on usage.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes accuracy level, light source type, temperature control, sample tube size, automation level and software features. Additional sample tubes, quartz plates and accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the semi-automatic polarimeter and accessories with an operation manual. On-site installation, calibration and training are not included for standard orders but can be arranged for quality control laboratory setup. Remote guidance is provided.
Q10: What types of samples are compatible with this equipment?
A: The semi-automatic polarimeter measures optical rotation of clear, transparent liquids and solutions within the concentration and path length specification. Turbid or colored samples may interfere with measurement and require clarification or appropriate wavelength. Solid samples can be measured after dissolution in appropriate solvents. Users should select appropriate sample tube path length for the expected rotation, ensure bubble-free sample filling, control sample temperature (optical rotation is temperature-dependent), calibrate with certified quartz plates, use proper solvent blanks, and report results as specific rotation with concentration, solvent, temperature and wavelength specified for reproducible comparison. The semi-automatic design requires proper manual sample placement and alignment, and the instrument should be leveled and allowed proper warm-up before measurement for accurate angle detection.
Tips: For more details, quotes and customized solutions, please contact us anytime. We’re always ready to serve you professionally.