Publications
All PublicationsLCGC InternationalLCGC North AmericaLCGC EuropeLCGC Asia PacificLCGC SupplementsThe ColumnE-BooksThe Application Notebook
Columns
News
All NewsInterviews
App Notes
All App NotesBiological, Medical, and ClinicalBiopharmaceuticalsCannabisChiralEnvironmentalFood and BeverageGCGC-MSGeneralIndustrialLCLC-MSMedical/BiologicalMisc TechniquesPharmaceuticalsPolymersSample PrepSize-Exclusion Chromatography (SEC)Supercritical Fluid Chromatography (SFC)
More
Conferences
Conference CoverageConference Listing
Webcasts
All WebcastsChromAcademy
Resources
ProductsE-BooksChromTubeEventsAnalytically Speaking PodcastPodcastsPodcast SeriesSponsored VideosQ&AsSponsored ContentContent Engagement HubsTips & TricksIndustry InsightsInstrument InsightsCareer OpportunitiesPartnersPeer Exchange
Directory

Subscribe

  • Publications
  • Columns
  • News
  • App Notes
  • Conferences
  • Webcasts
  • Resources
  • Directory
  • Subscribe
  • Analytical Instrumentation
  • Analytical Theory
  • Biological, Medical, and Clinical Analysis
  • Biopharmaceutical Perspectives
  • Biopharmaceuticals and Protein Analysis
  • Cannabis Analysis
  • Capillary Electrophoresis
  • Chiral Chromatography
  • ChromAcademy
  • Corporate Profiles
  • Data Acquisition, Handling, and Archiving
  • Data Analysis, Statistics, and Chemometrics
  • Dietary Supplements Analysis
  • Environmental Analysis
  • Field-Flow Fractionation (FFF)
  • Food and Beverage Analysis
  • Forensics, Narcotics
  • From the Editor
  • GC–MS
  • Gas Chromatography (GC)
  • HILIC
  • HPLC
  • Ion Chromatography
  • LCGC Interviews
  • LCGC TV: Gas Chromatography
  • LCGC TV: Hyphenated Techniques
  • LCGC TV: Liquid Chromatography
  • LCGC TV: Sample Preparation
  • LC–MS
  • Liquid Chromatography (LC/HPLC)
  • Market Profiles
  • Mass Spectrometry
  • Medical/Biological
  • Multidimensional GC
  • Multidimensional LC
  • Peer-Reviewed Articles
  • Pharmaceutical Analysis
  • Preparative-Scale Chromatography
  • Process Analytical Technology (PAT)
  • Quality Control/Quality Assurance (QA/QC)
  • Quality by Design (QbD)
  • Regulatory Standards, GLP and GMP Compliance
  • Sample Preparation
  • Size-Exclusion Chromatography (SEC)
  • Solid-Phase Extraction (SPE)
  • Supercritical Fluid Chromatography (SFC)
  • Supercritical Fluid Extraction (SFC)
  • The Next Generation
  • Thin Layer Chromatography
  • Trends
  • UHPLC
  • Web of Science
Spotlight -
The State of The Art in Life Science|
The Future of Mass Spectrometry|
Advances in Gas Chromatography
|Articles|December 10, 2020

Rapid Analysis of Plasmid Topoisomers

Author(s)Tosoh Bioscience

AEX using a TSKgel® DNA-NPR column offers a rapid method for discriminating between covalently closed circular, open circular, and linear forms of plasmid DNA.

Newsletter

Join the global community of analytical scientists who trust LCGC for insights on the latest techniques, trends, and expert solutions in chromatography.

Subscribe Now!

Related Content

BioCore HIC Column Family:A Unique Tool for Protein-based Biotherapeutics Analysis

ByNanoChrom Technologies (Suzhou) Co., Ltd
November 13th 2025

Analysis of 40 Per- and Polyfluoroalkyl Substances by US EPA Method 1633 Part 4: Application to Fish and Other Animal Tissue Samples

ByPerkinElmer, Inc.
November 12th 2025

Analysis of 40 Per- and Polyfluoroalkyl Substances by US EPA Method 1633 Part 3: Application to Sand, Soil, Sediment, Sludge, Biosolid and Other Solid Samples

ByPerkinElmer, Inc.
November 12th 2025

Analysis of 40 Per- and Polyfluoroalkyl Substances by US EPA Method 1633 Part 2: Application to Surface Water and Wastewater Samples

ByPerkinElmer, Inc.
November 12th 2025

Analysis of 40 Per- and Polyfluoroalkyl Substances by US EPA Method 1633 Part 1: Method Development and Verification with Quality Control Samples

ByPerkinElmer, Inc.
November 12th 2025

Trending on LCGC International

1

Best of the Week: Affinity Chromatography, Potato Chips, ACS Updates

2

The 19th International Symposium on Hyphenated Techniques in Chromatography and Separation Technology (HTC-19)

3

Detecting and Profiling Sterols in Pre-Prepared Foods Using GC–MS

4

Advantage of HALO 1000 Å over Competitor Columns for Oligonucleotides

5

Impurity Analysis of a Crude 90-mer ssDNA using the HALO 1000 Å Oligo Column

  • About
  • Advertise
  • Author Guidelines
  • Contact Us
  • Editorial Advisory Board
  • Ethics Policy
  • Do Not Sell My Personal Information
  • Privacy Policy
  • Permissions
  • Subscriptions
  • Terms and Conditions
Contact Info

259 Prospect Plains Rd, Bldg H
Cranbury, NJ 08512

609-716-7777

Brand Logo

© 2025 MJH Life Sciences®

All rights reserved.

Home
About Us
News
Contact Us