Purchaser: Lizhu Pharmaceutical                                   Date: April 2025

Product Name: Fully Automatic Refractometer             Specification and Model: Digipol-R300

Lizhu Pharmaceutical Group Co., Ltd. was founded in January 1985. It is a comprehensive pharmaceutical group company integrating the research and development, production and sales of pharmaceutical products. The company regards research and development innovation as the cornerstone of sustainable development, continuously pays attention to new molecules and cutting-edge technologies in the global new drug research and development field, and makes forward-looking layouts for innovative drugs and high-barrier complex preparations based on clinical value and differentiation. Focusing on areas such as the digestive tract, assisted reproduction, mental health, and tumor immunology, a complete product cluster and a differentiated product pipeline covering the entire R&D cycle have been formed.

The DigiPol-R series of fully automatic refractometers are equipped with high-performance linear array CCD photosensitive components. Through high-speed and high-precision signal acquisition and analysis processing technology, they are also equipped with a semiconductor Peltier super temperature control system. It can efficiently and accurately measure the refractive index (nD) of various liquids such as transparent, semi-transparent, dark and viscous, as well as the mass fraction (Brix) of sugar solutions. Built-in Peltier temperature control improves accuracy and stability; The first domestic dual-temperature control, sapphire prism; LED cold light sources replace traditional sodium lamps and halogen tungsten lamps. Comply with 21CFR Part11 audit trail, pharmacopoeia and electronic signature; Support network printing and data statistics and retrieval; Multi-level permission management, with freely configurable permissions; 7-inch touch color screen, user-friendly operation interface; The whole machine has passed TART and CE certifications. The fully automatic refractometer is widely used in the petroleum industry, oil industry, pharmaceutical industry, food industry, daily chemical industry, sugar industry, etc. It is also one of the commonly used devices in schools and related research institutions.