日本ビュッヒ List of Products and Services

The smart Kjeldaahl method, aimed at maximum flexibility, is a rapid and highly accurate and reproducible method for analyzing nitrogen and protein. Büchi offers systems tailored to various needs of Kjeldaahl analysis, ranging from simple distillation units to advanced distillation and titration analysis devices. The choice of the optimal Kjeldaahl system depends on the application, workflow, and the number of samples. Büchi provides a wide range of system examples (combinations) to meet various customer needs. 【Features】 ■ A package that integrates the workflow ■ A rich product lineup ■ Accessories tailored for specific applications ■ Strong support and technical expertise *For more details, please refer to the catalog.

If you have any questions regarding the introduction below, please feel free to contact us.

The "K-425/K-436" is an IR-type Kjeldahl digester that sets a new standard for the speed of decomposition, flexibility, and reproducibility. It can rapidly decompose a wide range of samples. With built-in temperature control functionality, it achieves stability at high temperatures. The integrated rack makes handling easy, and both 300mL and 500mL sample tubes can be used with the same device. 【Features】 ■ Easy operation ■ Time-saving through rapid heating and cooling ■ Simple temperature control with a scale of 1 to 10 ■ Easy handling with the integrated rack ■ Compatible with sample tubes from other manufacturers *For more details, please refer to the PDF document or feel free to contact us.

What is needed for innovation is to realize a vision. Büchi has demonstrated this concept over the past few decades through innovative products in the field of evaporation and separation. As a result of the continuous development of experimental methods and technologies, we have been able to complete this revised edition of the "Laboratory Assistant." This book will help provide a broader and deeper understanding of widely used laboratory equipment such as rotary evaporators, vacuum pumps, and melting point measurement devices. All the equipment illustrated in this book is Büchi's products. Each chapter of this book is written using general expressions to apply as much as possible to products from other companies. We hope that readers will find the content of the "Laboratory Assistant" interesting and that it will help solve challenging issues in the laboratory. We encourage you to have this book at hand.

The Kjeldaire Decomposer K-446/K-449 reduces processing time by up to 2 hours and meets the highest safety requirements. Combined with the KjelMaster (Kelsampler) system, an all-automatic distillation device featuring Bühler's original sample transfer structure, further efficiency can be achieved. The exhaust unit is magnetically fixed for exceptional ease of use, and the drip tray extends the lifespan of the heating block and accessories. The latest sealing system enables efficient steam suction. 【Features】 ○ High efficiency ○ Reduces processing time by up to 2 hours ○ Easy to handle and safe ○ Proven high performance: compliant with many official methods For more details, please contact us.

The Kjeldaahl Digester K-439 (IR type) is an IR digester equipped with a temperature controller that allows for precise temperature settings. It can be programmed for temperature gradients and time, with the ability to save data in a database. It features an easy-to-read LCD display that allows you to monitor the progress of the digestion. Acidic vapors, reactive gases, and odors generated during the Kjeldaahl analysis process can be safely handled by the Scrubber B-414. Additionally, it prevents corrosion from drafts caused by acids. 【Features】 - Efficient operation - Accurate and stable temperature control - Easy-to-read LCD display - Selectable sample test tubes - Prevention of acidic vapor leaks For more details, please contact us.

The B-440 is a wet ashing device composed of a wet decomposer and a scrubber. It allows for easy and efficient ashing treatment tests, such as the determination of residue by incineration in the pharmaceutical field and pretreatment for heavy metal measurement in the food sector. Each program can be set with up to five stages of time and temperature, and it uses halogen lamps, allowing it to quickly reach the set temperature and begin heating. 【Features】 - Quick temperature rise due to the use of halogen lamps - Ability to set 9 different programs - Each program can have up to five stages of time and temperature settings - Reduction of bumping - Visual observation of the sample condition through a glass hood *For more details, please refer to the PDF document or feel free to contact us.

The new high-speed high-pressure extraction device using a new method is bringing significant changes to solvent extraction. It can extract 6 samples in as little as 20 minutes while minimizing solvent usage. It is an economical and environmentally friendly extraction device.

Simultaneous distillation and concentration of 4 samples, 6 samples, and 12 samples can significantly improve efficiency in the analysis lab!

The "Multi Vapor P-6/P-12" is a multi-sample parallel evaporator that can process up to 12 samples simultaneously. It can utilize the vacuum system and solvent recovery apparatus of your existing rotary evaporator. Depending on your application, you can choose between the Multi Vapor and the rotary evaporator. You can select either the "6-sample type" or the "12-sample type" based on the sample volume and container size. 【Features】 ■ Enables fast evaporation without hassle ■ The installation space required is only 27×40 cm, making it space-saving ■ No need to transfer samples ■ Significantly improves work efficiency ■ Safely recovers vaporized solvents through cooling condensation *For more details, please refer to the PDF document or feel free to contact us.

We efficiently perform parallel distillation and concentration of a wide range of samples from distillation to drying. Simultaneous concentration of multiple samples is an essential condition for enhancing the productivity of parallel multi-step synthesis, extraction, quality control, and chromatography. Polyvap quickly and safely addresses this issue and is compatible with high-boiling point solvents. Additionally, by using interchangeable racks, samples ranging from 0.5 to 500 ml can be distilled. When used in conjunction with the optional vacuum controller V-855, optimal distillation conditions are automatically adjusted. For more details, please contact us or refer to the catalog.

Innovative and safe solvent 50L rotary evaporator.

The "R-220 Pro" is a large-capacity evaporator packed with user-friendly features suitable for pilot plants and kilo labs. The sample introduction valve allows for easy sample introduction without removing the flask. If the sample volume exceeds what can fit in the flask at once, additional samples can be easily introduced during distillation. Furthermore, it features an easy-to-use large-screen touch panel. It includes a database function that allows for easy setting of optimal vacuum levels for each solvent, as well as the ability to check operational status remotely via mobile devices, making it a model focused on usability. 【Features】 ■ Easy-to-read large screen / Touch panel operation ■ Database function for easily setting optimal vacuum levels for each solvent ■ Ability to check operational status remotely via mobile devices ■ Push notifications to the device in case of errors ■ Programmable time settings for rotation speed, bath temperature, and vacuum level ■ Capability to save operational status to an SD card for process management ■ Leak test function *For more details, please refer to the PDF materials or feel free to contact us.

Introducing the "Soxhlet Extraction Device" handled by Nippon Buech. This device achieves extraction tailored to the sample through program settings. It shortens the time for one cycle using a solvent light sensor and solenoid valve. Additionally, it can operate automatically until drying is complete. 【Features】 ■ Fast, easy, and reliable ■ Achieves time reduction for one cycle with solvent light sensor and solenoid valve ■ Realizes extraction according to the sample through program settings ■ Capable of automatic operation until drying is complete ■ Equipped with safety features such as prevention of solvent drying and detection of solvent leakage *For more details, please refer to the PDF document or feel free to contact us.

In the compound feed industry, various products with different ingredient formulations are produced, and even a single factory manufactures a wide range of products for different types of animals and pets, as well as custom formulations. In the production process of compound feed, maximizing profits is a significant challenge, particularly due to factors such as narrow profit margins, pressure from delivery times and costs, variability in raw material quality, and high quality demands. This document outlines five steps to achieve a compound feed process line that maximizes profits. We encourage you to read it. 【Contents】 ■ Problem Recognition ■ Analysis of the Production Process ■ Pursuit of Optimization ■ Discovery of Solutions ■ Implementation of Real-Time Process Control with NIR-Online Sensors *For more details, please refer to the PDF document or feel free to contact us.

This poster introduces tips on how to shorten the working time involved in "freeze-drying" while ensuring it is done "reliably." It includes topics such as "the freeze-drying process," "effective process control," "requirements for vacuum pumps," and "detection of the end point of drying." We encourage you to take a look. 【Contents (partial)】 ■ Shortening experimental work time through optimization of process parameters ■ Effective process control ■ Cooling condenser ■ Requirements for vacuum pumps ■ Correlation between temperature and vapor pressure of ice *For more details, please refer to the PDF document or feel free to contact us.

Related Device: Fractionation Chromatography System Pure C-815 Cholesterol and its esters, which are components of biological membranes, are utilized as industrial raw materials in cosmetics, pharmaceuticals, and liquid crystals. When performing gradient fractionation purification for compounds that are difficult to detect with UV detectors, methods are selected using low wavelength UV detection such as 210 nm or ELSD (Evaporative Light Scattering Detector). ELSD is a fractionation purification method that overcomes the disadvantages of UV-triggered fractionation due to the absence of baseline drift and T0 peaks. By adopting ELSD & UV double triggering, it enables complementary fractionation purification using both ELSD and UV. 【Issues with Low Wavelength UV Triggered Fractionation】 ■ The baseline drifts due to the solvent's own absorption used in the mobile phase, making it difficult to detect sample peaks. ■ Baseline rises consistently during gradient steps, leading to the baseline being recognized as a peak, which significantly increases purification time and fraction volume. *For more details, please refer to the PDF document or feel free to contact us.

Related Products: Fractionation Chromatography System Pure C-815 To achieve high-purity precision purification of mid-sized compounds such as peptides, reverse phase LC is commonly applied, and simple rough purification after synthesis or extraction is generally performed using methods like SPE (solid-phase extraction). In rough purification using SPE, adjusting the pH of the solvent allows for easy separation of anions, cations, and non-ions, but separating components of the same ionic type is challenging. Rough purification by flash chromatography enables selective and rapid separation and purification of target compounds through optimization of mobile phase and gradient conditions. 【Mechanism of Rough Purification by SPE】 ■ Easy separation of anions, cations, and non-ions ■ Difficult separation of components of the same ionic type (anions, cations, non-ions) *For more details, please refer to the PDF document or feel free to contact us.

There are many available distillation systems. You may be unsure which one is suitable for achieving your goals. This free guide we provide will help you find a system that fits your samples, applications, and needs. Should you choose an industrial or lab evaporator, a multi-sample parallel evaporator, or a glass tube oven? Refer to the guide to determine which is appropriate for the following applications: - Research and development, production, bars & restaurants, natural product exploration, or contract labs - Various batch sizes and flask sizes - Foaming samples or light-sensitive samples - Options for automation or digitalization Make sure you are using a system that is suitable for your methods to enhance the efficiency and safety of your lab. *For more details, please refer to the PDF materials or feel free to contact us.*

This pocket guide explains the basic knowledge of the Kjeldahl method, incorporating theory and tips. • Are you familiar with the reaction equation of the Kjeldahl method? • How do you determine the measurement conditions? • Are you aware of different techniques such as boric acid titration and back titration? Additionally, it covers all steps of nitrogen and protein analysis, summarizing key points concisely. Please make use of it in your lab! 【Contents (partial)】 ■ Overview of the Kjeldahl process ■ Sample pretreatment - Overview ■ Sample pretreatment ■ Digestion - Overview ■ Digestion - Carbonization *For more details, please refer to the PDF document or feel free to contact us.

This free guidebook explains the equipment and procedures used for matrix analysis of soil, sludge, sediments, waste, wastewater, and air. It can be utilized for tips to improve workflow, productivity, and quality in the lab. Please refer to it for the detection of common contaminants such as PAHs, PCBs, TPHs, phthalates, and pesticides. [Contents] ■ Outstanding solutions capable of handling a wide variety of matrices ■ Dedicated solutions tailored to the value chain ■ Suitable solutions customized to specific needs ■ Workflow for contaminant analysis *For more details, please refer to the PDF document or feel free to contact us.

The production of safe and high-quality feed begins with the management of the entire raw material. If real-time information can be obtained about the raw materials used in feed, such as wheat, corn, barley, oats, and sorghum, it is expected that the production process after raw material acceptance can be further optimized and yield improved. By installing BUCHI's "NIR-Online Process Analyzer" at the entrance, it becomes possible to quickly and easily monitor the composition of grains, which are the raw materials for feed. 【Features】 ■ Ultra-fast scanning at up to 100 times per second ■ Equipped with a pre-lamp to avoid measurement interruptions ■ Stable measurements achieved through temperature control functions of the detector ■ Dustproof and waterproof (IP65), explosion-proof (ATEX standards) ■ Supports wireless measurement (Bluetooth) ■ Simultaneous monitoring of color and images ■ A wide range of options for process installation *For more details, please refer to the PDF document or feel free to contact us.

The "Sepiatec SFC" is an integrated unit that can be installed in the same space as an evaporator (SFC-50). Designed with ease of use in mind, it features an intuitive operation that is suitable for all users. There are various models and options to choose from based on your intended use, and it is equipped with all the necessary functions for a fractionating SFC in an all-in-one package. 【Features】 ■ Expertise from specialists ■ Large-scale injections in a short time ■ Simple yet smart setup ■ Minimal lab footprint ■ All-in-one *For more details, please refer to the PDF materials or feel free to contact us.

Büchi Japan Co., Ltd. will hold the "Near Infrared Analysis Seminar in Osaka" at the NLC Shin-Osaka Building. The near-infrared (NIR) analysis method allows for rapid component analysis without sample pretreatment and is being adopted in a wide range of fields, including food, chemicals, and pharmaceuticals. This seminar will cover the basic principles of near-infrared analysis, as well as workshops on creating calibration curves and measurements using actual equipment. We hope you will join us. 【Seminar Overview】 ■ Date: May 29, 2025 (Thursday) 13:00 - 16:30 (Doors open at 12:30) ■ Venue: NLC Shin-Osaka Building, Basement 1 Conference Room ■ Address: 5-9-5 Nishinakajima, Yodogawa-ku, Osaka City, 532-0011 ■ Capacity: 30 people (Registration will close once capacity is reached) ■ Participation Fee: Free