Analysis of impurities in organic solvents

The aldol reaction progresses under the influence of temperature, humidity, and light! Example of impurity analysis in ethanol and acetone.

This is an example of analyzing impurities confirmed from a solvent when high-purity products are stored in inappropriate environments, using liquid injection GC-MS. Ethanol stored in a light-protective reagent bottle in a cool, dark place was transferred to a used plastic wash bottle and left at room temperature for about a month. As a result, impurities such as triethyl borate and alkylbenzenes were detected. Additionally, acetone stored in a light-protective reagent bottle in a cool, dark place was transferred to a transparent glass bottle without light protection and left at room temperature for about a month, resulting in the detection of diacetone alcohol as an impurity. [Impurity Analysis in Ethanol] ■ Ethanol stored in a light-protective reagent bottle in a cool, dark place was transferred to a used plastic wash bottle and left at room temperature for about a month (the opening of the wash bottle was not sealed). ■ Result: Impurities such as triethyl borate and alkylbenzenes were detected. *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Contract Analysis
• Other contract services

We conduct surface analysis, foreign substance analysis, and organic composition analysis.

At AITES, we propose and conduct contract analysis menus suitable for the purpose and sample, including the analysis of organic and inorganic substances, foreign substances, and surface analysis. In this department, we perform component analysis of microscopic foreign substances using advanced sampling techniques, as well as impurity analysis in samples, conducting both qualitative and quantitative analysis of organic and inorganic components. Additionally, we analyze the surface of samples for contamination and oxidation states. 【Service List】 ■ Component analysis of epoxy resin curing agents using Pyrolysis GC/MS ■ Analysis of microscopic organic foreign substances using Imaging FT-IR ■ Analysis of microscopic foreign substances using Micro-Raman spectroscopy ■ Ion Chromatography (IC) analysis, etc. *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Analysis Services

Introducing a new device! We present an analytical method aimed at the qualitative and quantitative analysis of components contained in samples.

We have introduced the "GC-MS Gas Chromatograph Mass Spectrometer" manufactured by Shimadzu Corporation. This is one of the analytical methods aimed at qualitative and quantitative analysis of components contained in samples, used for the qualitative and quantitative analysis of volatile organic compounds such as parts, materials, residual solvents, and additives. It is necessary for the measurement target to be gasified (with a boiling point below 300°C), but it is suitable for component analysis of mixtures due to its higher sensitivity compared to IR and RAMAN, as well as the ability to separate components in the GC section. 【Overview of GC-MS Equipment】 ■ GC-MS Main Unit: GC-2030, GCMS-QP2020 NX ■ Headspace Sampler: HS-20 ■ Pyrolysis Analyzer: Multi-Shot Pyrolyzer Py-3030 ■ Specifications ・Detection Limit: Several ppm (varies depending on the measurement target) ・Headspace: 40–300°C, Sample Size 13mm x 40mm or smaller ・Pyrolysis Analyzer: 50–1050°C (EGA measurement compatible), Sample Size up to 4mm *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices
• Contract Analysis

Introducing the sample introduction device and the types of analytical samples and analysis content that each device specializes in!

GC-MS analysis is a method commonly used for the analysis of organic components and organic structure analysis. With auxiliary devices, it is capable of a wide range of analyses, from low molecular substances like solvents to high molecular substances like plastics. In this document, we will introduce the sample introduction devices owned by Aites, as well as the types of analysis samples and analysis content that each device specializes in. We invite you to read it. 【Contents】 ■ Overview ■ Conditions ■ Samples ■ Data Obtained ■ Analysis Examples *For more details, please refer to the PDF document or feel free to contact us.

• Analytical Equipment and Devices

I will introduce examples of comparing the components of color developers contained in thermal paper using solvent extraction!

As a pre-treatment for GC-MS analysis, solvent extraction can sometimes allow for highly sensitive analysis of target substances. This document introduces examples of component comparison of dirt wiped with a cloth and component comparison of color developers contained in thermal paper using solvent extraction. In addition to solvent extraction, we can propose suitable methods from various pre-treatment techniques tailored to your samples and analysis targets, so please feel free to contact us. [Contents] ■ Comparative analysis of dirt components and surrounding materials ■ Component comparison of color developers contained in thermal paper *For more details, please refer to the PDF document or feel free to contact us.

• Contract Analysis
• Contract measurement
• Other contract services

We are pleased to announce that Tokyo Machine Works Co., Ltd. will be exhibiting at the "INNOVATION EXPO 2025" to be held at Tokyo Big Sight from September 10 (Wednesday) to September 12 (Friday), 2025. 【Exhibited Equipment】 - 1-ton portable autonomous mobile robot (AMR) - 2-ton portable unmanned transport vehicle (AGV) - Shutter-equipped unmanned transport vehicle - Autonomous cleaning robot, etc. 【Booth Number】 - 6-405 You will have the opportunity to see each machine up close, including demonstrations that link the equipment together. We sincerely look forward to your visit during this event. Please note that pre-registration (free of charge) is required to attend the exhibition, so we kindly ask you to register using the link below. https://www.logistech-online.com/jp/registration.php?exhibitor=EX000072 If you would like an invitation, please request it through our contact form.

Contec has added a BTO menu for the Windows 11-based embedded OS - Windows 11 IoT Enterprise LTSC 2024 to its industrial computer "MR4310 series" and has started accepting orders.

Contec has developed the Ethernet wireless converters "RP-WAH-SR12" and "RP-WAH-SR22," which utilize 920MHz sub-gigahertz wireless (IEEE 802.11ah) to enable Ethernet communication wirelessly even at distances of up to 1 km. Sales began on August 21, 2025. The new products are compact IEEE 802.11ah compliant wireless LAN converters that can be installed in various locations. The new Wi-Fi standard "IEEE 802.11ah," which utilizes sub-gigahertz wireless communication, became available in Japan in September 2022. It operates in the 920MHz band without the need for a license and can be used outdoors. Compared to conventional 920MHz wireless communication, it enables high-speed communication and the establishment of long-distance networks, making it expected to be utilized in large factories, plants, and farms. The new Ethernet wireless converters are designed to be lightweight and compact, allowing for installation in various locations such as walls and DIN rails with the included mounting brackets. Additionally, they support external antennas, enabling the construction of flexible wireless LAN systems.

Contec has developed a super compact business computer equipped with the Intel(R) Core(TM) Ultra processor (Series 1), and has started accepting orders for the business computer "LPC-500 Series" (hereinafter referred to as the new product) from August 28, 2025. The new product is a super compact business computer featuring the Intel(R) Core(TM) Ultra 5 processor 125U (Series 1, Meteor Lake-U). It is equipped with "Intel(R) AI Boost," which integrates an NPU into the CPU, allowing for the execution of AI functions such as image recognition and voice processing at high speed and low power consumption while reducing the load on the CPU and GPU. With ultra-compact dimensions of 150(W) × 150(D) × 33(H) mm, it comes with a vertical stand and VESA mounting brackets, enabling installation in tight spaces on desks, behind displays, or inside equipment without restriction. It adopts a BTO (Build to Order) method that allows customers to freely choose memory capacity, storage, OS, and more, enabling the order of a PC with specifications optimal for their needs and budget starting from just one unit.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed without causing any thermal impact on the base material. Repairs can be made even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.