Overview
The automatic polarimeter with temperature control is an advanced instrument designed for precise measurement of optical rotation in chiral substances. It is widely used in industries where the purity and concentration of optically active compounds are critical, such as pharmaceuticals, food production, and chemical manufacturing. The instrument combines automated sample handling with precise temperature regulation, ensuring consistent and reliable results. Modern versions often include digital interfaces and software for data analysis, making them indispensable in quality control laboratories.
Structure and Working Principle
A typical automatic polarimeter consists of a light source, polarizer, sample chamber, analyzer, and detector. The light source emits monochromatic light (usually sodium D-line at 589 nm), which is polarized before passing through the sample. The temperature-controlled sample chamber ensures the sample is maintained at a specific temperature, critical for accurate measurements. The analyzer measures the angle of rotation of the polarized light caused by the sample, and this data is processed to determine the optical rotation and specific rotation of the substance.
Key Features
Modern automatic polarimeters offer several advanced features, including high-resolution measurement capabilities (often to 0.001°), wide temperature control ranges (commonly from 0°C to 50°C), and fast measurement times. Many models include automated sample changers for high-throughput applications, built-in validation protocols for compliance with pharmacopeia standards, and connectivity options for integration with laboratory information management systems (LIMS).
Application Areas
The pharmaceutical industry is the primary user of automatic polarimeters, employing them for quality control of chiral drugs, excipients, and raw materials. They are essential for verifying the optical purity of substances, a critical parameter in drug efficacy and safety. In the food industry, these instruments measure sugar concentrations and monitor fermentation processes. Chemical research laboratories use them for studying stereochemistry and characterizing new compounds.
Maintenance and Precautions
Regular maintenance of an automatic polarimeter includes cleaning optical components with appropriate solvents, checking and replacing light sources as needed, and verifying temperature control accuracy. The instrument should be calibrated regularly using certified reference materials. It's important to protect the device from vibrations, direct sunlight, and extreme environmental conditions that could affect measurement accuracy.
B2B Procurement Guide
When procuring an automatic polarimeter, buyers should evaluate several factors: measurement range and accuracy requirements, necessary temperature control capabilities, compliance with relevant industry standards (such as USP or Ph. Eur.), and available accessories. Consider the instrument's software capabilities, including data export formats and compliance with 21 CFR Part 11 for pharmaceutical applications. Service and support availability, including calibration services and technical support, should also be key considerations in the procurement process.
Related Manufacturers
- 主营：超净工作台、高压蒸汽灭菌器、生物安全柜、旋光仪、低温冰箱、二氧化碳培养箱、生化培养箱、除颤仪、经皮黄疸仪、婴儿培养箱、生化分析仪、安全柜检测过滤器更换、红外线灭菌器、移液器、医用离心机、智慧药房、包埋机、脱水机、酶联免疫分析仪、欧莱博液氮罐、欧莱博移液器、欧莱博纯水机、欧莱博天平、欧莱博通风柜、切片机、化学发光免疫分析仪
- 主营：质构仪、滴点仪、粘度仪、旋光仪、色度仪、水分仪、硬度仪、四球机、密度计、粘度计、自燃点仪、凝点倾点仪、闪点仪、馏程仪、沸程仪、油脂氧化稳定性仪、烟点仪、酸值仪、结晶点
- 主营：高精度光学仪器、折光仪、盐度计、旋光仪、自动旋光仪、熔点仪、气体报警器、密度计、在线折光仪、数显折光仪、在线浓度传感器、糖度计、数显阿贝折射仪、阿贝折射仪、折射仪、在线浓度计、全自动在线折光仪、在线折射仪、全自动折光仪、数显糖度计、手持式折光仪、手持式浓度计、数显熔点仪、数显显微熔点仪、在线监测仪
- 主营：全自动数字旋光仪、熔点仪、密度计
- 主营：抗压机、紫外老化、氙灯老化、恒温恒湿试验箱、高低温实验箱、阻干态、纸板耐破、门尼粘度仪、硫化仪、紫外箱、低温回缩试验机、水平垂直燃烧、热变形维卡、过滤效率、盐雾箱、电压击穿、电阻率、透气检测仪、落锤冲击、透光率、管材耐压爆破、凯氏定氮仪、测厚仪、电子拉力试验机、老化箱
- 主营：测试仪、糖度计、浓度仪、旋光仪、折射仪、测定仪、浓度计、盐度计、折光仪、数显折射计、甜度测量仪、糖度检测仪、蜂蜜水分仪、手持式折光计、数显蜂蜜糖度仪、质量分数测量仪、蜂蜜浓度测量仪
- 主营：移液器、瓶口分液器、数显瓶口滴定器、恒温自动旋光仪、电子天平、扭力仪、推拉力计、分光光度计、VOC检测仪、COD检测仪、风速仪、溶解氧仪、PH计、水质检测仪、粉尘仪、涂层测厚仪、超声波测厚仪、烟气分析仪、温湿度计、浊度仪、红外热像仪、激光测距仪、望远镜、电导率仪、张力仪、臭氧分析仪
- 主营：密封测试仪、拉力试验机、水分活度测量仪、恒温槽、旋光仪、熔点仪、雾度计、分光光度计、密度计、干燥箱、翻转振荡器、冷冻干燥机、低温冷却循环泵
- 主营：旋光仪、水分仪、水分测定仪
- 主营：旋光仪、圆盘旋光仪、熔点仪、透光率雾度仪、阿贝折射仪
- 主营：cod检测仪、实验室水质测定仪、在线氨氮检测仪、全自动旋光仪、在线水质监测设备、BOD检测仪、多参数水质检测仪、浊度检测仪、污泥浓度检测仪、COD氨氮总磷总氮测定仪、重金属检测仪、水产养殖检测仪、在线余氯检测仪、在线PH检测仪、在线悬浮物检测仪、TOC总有机碳分析仪
- 主营：气相色谱仪、鲁尔接头综合性能测试仪、针管(针)刚/韧性测试仪、旋光仪、针管流量测试仪、注射器滑动性能测试仪、缝合针切割力测试仪、输液器正/负压泄漏测试仪、输液器流量测试仪、导尿管综合性能测试仪、输尿管支架固定强度测试仪、导管残留真空测试仪、连接牢固度与分离力测试仪、导管正/负压测试仪、导管通畅性测试仪、动力注射件流量与压力测试仪、导丝破裂测试仪、导丝弯曲性能测试仪、鼻氧管综合性能测试仪、呼吸管路气流阻力测试仪、喉罩弯曲性能测试仪、NGI药用撞击器、呼吸模拟器
- 主营：甲醛释放量气候箱、水泥水化热测定仪、沥青蜡含量、旋光仪、高低温水浴、水泥生料易烧性压实机、人造板划痕试验仪、水泥原料易磨性球磨机、冻土冻结温度、混凝土粉样分层研磨机、家具平整度试验仪、土工布垂直渗透仪、小室法甲醛试验箱、人造板落球冲击试验仪、砂基透水砖透水速率、水泥胶砂抗冻性试验箱
- 主营：德国wtw、金属浴、浊度仪、自动恒温、检测仪、分贝仪、球磨仪、wtwoxi3205、pcstestr35、ph测试笔、do分析仪、便携式ph、电动水质、金属粉尘、防爆粉尘、wtw浊度计、自动高速、气路防爆、矿用粉尘、智能粉尘、cod消解仪、bod测定仪、电导率仪、电子天平、电阻率仪
- 主营：移动脚轮、低温冰箱、心电图机、申光自动旋光仪、冷藏运输、电动吸引、冷冻离心机、生化分析仪、消毒机器人、药品冷藏箱、酶免工作站、紫外线空气、空气消毒机、心电监护仪、生物显微镜、电子肠胃镜、生物安全柜、洁净工作台、自动体外除颤、裂隙灯显微镜