Chromatography

  • Premium Chromatography Media for TLC and HPTLC

Premium Chromatography Media for TLC and HPTLC

Feb 27 2019 Read 659 Times

Depending on the application, users of thin-layer chromatography (TLC) either want economical aluminium and polyester sheets or robust TLC glass plates for reliable analysis. MACHEREY-NAGEL - manufacturer of TLC products since 1961 - offers premium chromatography media for thin-layer chromatography.

TLC aluminium and polyester sheets

Thin-layer chromatography is a widely used technique in routine analysis. Especially for qualitative analyses in organic synthesis economical aluminium or polyester sheets are used.
ALUGRAM® Xtra SIL G, silica 60 coated aluminium sheets, are easy and reliable to cut due to an optimised binder system. Furthermore, the silica layer shows an excellent separation efficiency and reproducibility from lot to lot.

POLYGRAM® SIL G are silica 60 coated polyester sheets with a binder system, completely stable in purely aqueous eluents. Both kind of sheets are available with or without UV indicator.

For high performance thin-layer chromatography (HPTLC) ALUGRAM® Xtra sheets are coated with Nano-SIL G silica gel. The narrow fractionation of the particles allows sharper separations, shorter developing times and an increased detection sensitivity compared to conventional silica layers.

Modified silicas like RP-18 W (octadecyl-modified HPTLC silica layer) and further adsorbents like Alox N (aluminium oxide), CEL 300 (native fibrous cellulose) or POLYAMIDE-6 (ε-polycaprolactame) are also available on economical aluminium or polyester sheets.

TLC and HPTLC glass plates

Glass plates are mostly used for clinical, pharmaceutical, natural product and food analysis. Especially in instrumental thin-layer chromatography glass plates provide an advantageous handling. Furthermore, the photometric quantification of analytes is more accurate.

The established ADAMANT glass plates exhibit an outstanding hardness and abrasion resistance of the layer due to an improved binder system. This allows labelling the plates.

The well-known SIL G plates show an alternative selectivity compared to other commercial silica plates. By using these plates previous separation problems can possibly be solved.

Nowadays, developments of new TLC plates are very rare. However, MACHEREY-NAGEL recently launched the new TLC glass plates SIL HD as well as Nano-SIL HD plates for HPTLC. These silica 60 plates are characterised by 'High Definition' properties at the detection with UV light. Moreover, TLC users benefit from excellent staining properties for post-chromatographic detection using spray reagents.

Additional to unmodified TLC and HPTLC layers, silicas with modifications like C18, NH2, CN as well as other variations feature different selectivities. Aluminium oxide, cellulose, polyamide and layers for special separations (e.g. CHIRALPLATE) complete the broad range of MACHEREY-NAGEL glass plates.

Further product information can be found at www.mn-net.com/TLC. A wide range of approved and new application notes are freely accessible online at www.mn-net.com/apps.

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment




Digital Edition

Lab Asia August 2019

August 2019

In this Issue Articles Mass Spectrometry & Spectroscopy 67th ASMS Conference on Mass Spectrometry and Allied Topics Chromatography Using Gas Chromatography for measuring atmo...

View all digital editions

Events

DioXin 2019

Aug 25 2019 Kyoto, Japan

ACS National Meeting & Expo, Fall 2019

Aug 25 2019 San Diego, CA, USA

Microscopy Conference 2019

Sep 01 2019 Berlin, Germany

BMSS Annual Meeting

Sep 03 2019 Manchester, UK

JASIS 2019

Sep 04 2019 Chiba City, Japan

View all events