The Importance and Effects of Delay Columns in PFAS Analysis - Management of Contaminant PFAS (Restec Corporation)

World Standard PFAS Analysis Support | Restek's Expert Team Delivers Fast and Accurate Results

Regulations and analytical methods for PFAS testing continue to change around the world. Restek's global expert team provides products and technical support that respond to the latest regulatory trends, enabling fast and accurate analysis. As a reliable partner, we offer optimal solutions. ■ PFAS Resource Library ■ PFAS Applications/Chromatograms ■ Partner for PFAS Analysis ■ PFAS-Related Products

• Testing Equipment and Devices

Emergency meeting! This time we will focus on the pretreatment of PFAS in environmental samples, as inquiries have surged!

The measurement of PFAS (perfluoroalkyl substances) is becoming increasingly important in the field of environmental testing. In particular, accurate and efficient quantitative analysis is required in complex matrices such as non-potable water, soil, and biosolids, including wastewater and rivers. In light of this, there has been a surge in inquiries regarding PFAS pretreatment in accordance with EPA Method 1633 since the end of last year. Therefore, we will urgently hold a seminar in February to address these challenges, changing our original schedule. 【Event Overview】 ■ Date: February 27, 2025 (Thursday) ■ Time: 13:30 - 14:15 JST (45 minutes) ■ Participation Fee: Free <Pre-registration required> https://register.gotowebinar.com/register/8028605763632700251

• Technical Seminar

A variety of stationary phases and particle sizes! LC columns with better selectivity that improve separation efficiency.

Restek's "Raptor LC Column" is a highly efficient LC column that significantly reduces analysis time. It includes options suitable for biological sample analysis, such as the "Raptor Biphenyl Column" for drug and metabolite analysis, as well as the "Raptor ARC-18 Column." It offers better selectivity that improves resolution and sustainable reproducibility. 【Features】 ■ High efficiency that significantly reduces analysis time ■ Better selectivity that improves resolution ■ Improved sample throughput with existing HPLC and UHPLC ■ Sustainable reproducibility ■ A variety of stationary phases and particle sizes *For more details, please refer to the PDF document or feel free to contact us.

• Other inspection equipment and devices

Sustainable reproducibility, diverse stationary phases and particle sizes! A rich lineup.

Introducing Restek's "Raptor Core-Shell LC Column." It features high efficiency that significantly reduces analysis time, improved selectivity that enhances resolution, and the potential for improved sample throughput with existing HPLC and UHPLC systems. We offer various types including Biphenyl, ARC-18, and C18. Please feel free to contact us if you have any requests. 【Features】 ■ High efficiency that significantly reduces analysis time ■ Improved selectivity that enhances resolution ■ Improved sample throughput with existing HPLC and UHPLC systems ■ Sustainable reproducibility ■ A variety of stationary phases and particle sizes *For more details, please refer to the PDF document or feel free to contact us.

• Separation device

The glass pot lid has a hydrophilic heat-resistant coating, allowing you to check the cooking state without any fogging.

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer attraction mainly in the BtoB (business-to-business) sector. On August 7, 2025 (Thursday), they published a page titled "Can You Leave an 'Impact' in Business Meetings and Presentations!? 'Echoic Memory'". 'Echoic Memory' is the temporary storage of auditory information received through the ears. The page explains the mechanisms and examples of its occurrence, the differences from 'Iconic Memory', points to maximize its effectiveness, and advanced utilization techniques. (Page Overview: Excerpts) ■ What is 'Echoic Memory'? ■ The mechanism of 'Echoic Memory' and familiar examples ■ 'Echoic Memory' and 'Iconic Memory' ■ Examples of utilization in business scenes ■ Four points to maximize the effectiveness of 'Echoic Memory' ■ Advanced utilization techniques for 'Echoic Memory' (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/echoic-memory-2025-08/

We would like to inform you that our company has recorded a special loss (executive retirement benefits) for the first half of the fiscal year ending December 2025, as detailed below. Furthermore, the payment of executive retirement benefits was approved at the "51st Annual General Meeting of Shareholders" held on March 28, 2025. 1. Recording of Special Loss In recognition of the long-standing contributions of one retiring director, we have recorded a special loss of 14,045 thousand yen as executive retirement benefits. 2. Impact on Performance The impact of this matter on the performance forecast for the fiscal year ending December 2025 is minimal. End.

We will disclose the interim financial results for the fiscal period ending December 2025.

As part of the "Hometown Ibara Future Creation Human Resource Development Project," we welcomed local elementary and middle school students to the special summer program "Ibara Job Exploration Tour 2025," a collaboration between the Ibara City Chamber of Commerce and the Corporate Branding Committee. We conducted a presentation that clearly and enjoyably introduced how our technology supports society, allowing the children to learn about the appeal of manufacturing and the significance of working while interacting with actual devices and products. Through this initiative, we hope to deepen our connection with the community and nurture the curiosity of the children who will carry the future. We sincerely thank everyone who participated, as well as all those involved in planning and organizing the event.