Knowledge

Explore the essential differences between GC‑MS and GC‑MS/MS in this comprehensive guide. Compare their mechanisms, performance, costs, and ideal use cases—perfect for labs seeking accurate trace analysis in complex samples.

Choosing the right sample vial in chromatographic workflows directly affects data accuracy and reproducibility. This article explores the key differences between HPLC and GC vials—covering application scenarios, material/design features, sealing methods, and instrument compatibility. It also provides purchasing tips and FAQ to help lab analysts, pharmaceutical R&D teams, and third-party testing labs make informed decisions and boost efficiency.

This comprehensive article explains why TOC Organic (total organic carbon) is a vital water quality parameter for labs and treatment plants. We compare TOC to COD, BOD and DOC, review TOC analysis methods (combustion, UV/persulfate, etc.) with a decision table, and highlight TOC’s applications in environmental, pharmaceutical and industrial settings. We cover sampling best practices, the latest innovations (IoT-connected analyzers, portable sensors, AI data tools) and future trends, ending with a practical call-to-action for water labs and plants.

Sample prep & filtration form chromatography’s first line of defense. This entry breaks down three failure modes—contamination & matrix interference, filter clogging, solvent–membrane mismatch—and offers concrete steps within a Defense‑Monitoring‑Correction framework to eliminate baseline drift, peak distortion, and column blockages.

This whitepaper details Aijiren’s ISO 965/GOST-R compliant bonded septa pull-off force testing procedures, extreme-environment validation data, and digital QA strategies, revealing the link between thread precision and seal integrity for lab consumables.

This document details a contamination incident in European TOP5 pharma: LC-MS detected PTFE fragments (m/z 412.96). Established torque-particle-column efficiency model. Intelligent torque system (±0.05Nm) improved batch pass rate from 84.3% to 99.6%.

In the fast-paced world of analytical chemistry, precision and efficiency are critical. For laboratories working with microsamples, 1mL shell vials have become ...

When analyzing volatile organic compounds (VOCs) using gas chromatography (GC), especially headspace sampling techniques, the choice of vial opening type is an ...

Paper chromatography is a widely used analytical technique that separates and identifies mixtures of substances based on their different affinities for a statio...

Silanization of HPLC vials is a critical process designed to improve chromatographic performance by minimizing the adhesion of analytes to the vial glass surfac...

Choosing the right culture tube is essential to ensure successful experiments in a variety of laboratory settings. Culture tubes are primarily used to grow micr...

Gas chromatography-mass spectrometry (GC-MS) is a powerful analytical technique that is widely used in food safety testing. The method combines the physical sep...

High-performance liquid chromatography (HPLC) has become a foundational analytical technique in the pharmaceutical industry and is widely used for drug analysis...

Polyethersulfone (PES) syringe filters are widely used for the filtration of liquids and gases in laboratory and industrial settings. Their unique properties ma...

High Performance Liquid Chromatography (HPLC) is an important analytical technique that is widely used in environmental analysis to detect, quantify, and monito...

Sterile syringe filters are essential tools in laboratory and industrial settings, designed to remove particles and contaminants from liquid samples. These filt...