Chromatography 19
Isocratic Pump Achieves Nearly Pulse-free Flow Rates for Improved Effi ciency Gilson announces an expansion to its chromatography systems product offering with the introduction of the VERITY®
3011 Isocratic Pump. The new VERITY 3011 Pump broadens the depth of the VERITY
purifi cation systems portfolio with advancements over existing pumps including a convenient quick-connect pump head design and intuitive touchscreen control of the instrument. The pump enables reaction monitoring and easily integrates into both analytical and semi-preparative chromatography systems for environmental, food and beverage, and petroleum applications.
The VERITY 3011 Pump is a standalone pump with touchscreen control that delivers accurate and nearly pulse-free fl ow rates, improving overall effi ciency and yield. The pump supports pressures up to 600 bar (8702 psi), which are some of the highest in the HPLC market, while the integrated pressure sensor protects system components from damage, decreasing downtime and operational costs.
The VERITY 3011 Pump heads rely on an innovative bayonet design that allows the pump heads to be easily changed without tools. Two pump heads available: the 5 SS for fl ow rates of 0.01–5 mL/minute and the 10 SS for 0.05–10 mL/minute. Both pump heads support pressures of up to 600 bar (8702 psi).
In a VERITY purifi cation system, the VERITY 3011 pump and other system components are powered by TRILUTION® LC software. When used as a standalone pump, the intuitive touchscreen makes it easy to set up and run the pump in one of three modes: Flow, Dispense, or Program.
Gilson has a long history of advancing durable chromatographic system design and today specialises in preparative HPLC, fl ash chromatography, centrifugal partition chromatography (CPC), and gel permeation chromatography (GPC), with instrumentation that benefi ts discovery- to process-scale workfl ows. The introduction of the VERITY 3011 Isocratic Pump enhances the Gilson purifi cation portfolio, which also includes columns, fraction collectors, detectors, and system control software.
45231pr@reply-direct.com New SPE Cartridges Keep Your Instrument Up and Running
Keep your organochlorine pesticide GCs up and running by protecting them against matrix components with superior sample cleanup. Resprep CarboPrep Plus SPE cartridges surpass traditional Florisil products in cleanup power for sample matrix compounds that cause active sites in GC inlets and columns, degrading pesticides and interrupting work due to failed calibration checks. For CarboPrep Plus cartridges, Restek uses a proprietary treatment to create an exceptionally clean carbon that exhibits consistent selectivity. The end result is a reliable sample preparation product that does not contribute interfering background signal and does not need to be evaluated lot to lot to see if elution volumes need to be adjusted. In addition, CarboPrep Plus cartridges are designed to use the same equipment, solvents, and solvent volumes as a traditional Florisil cleanup procedure, minimising the impact of switching on sample prep labs while maximising the performance benefi t to analytical labs.
More information online:
ilmt.co/PL/V4z6 48749pr@reply-direct.com ADVERTORIAL Premium Chromatography Media for TLC and HPTLC
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®
reproducibility from lot to lot. POLYGRAM®
For high performance thin-layer chromatography (HPTLC) 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 effi ciency and 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. 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. Modifi ed silicas like RP-18 W (octadecyl-modifi ed HPTLC silica layer) and further adsorbents like Alox N (aluminium oxide), CEL 300 (native fi brous 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 quantifi cation 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 Defi nition’ properties at the detection with UV light. Moreover, TLC users benefi t from excellent staining properties for post-chromatographic detection using spray reagents.
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Neumann-Neander-Str. 6–8 · 52355 Düren · Deutschland DE / International:
CH:
: 2008 ERT
+41 62 388 55 00 +41 62 388 55 05
:
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info@mn-net.com
Tel.: +33 388 68 22 68 Fax: +33 388 51 76 88 E-Mail:
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EN ISO 9001: 2008 ZERTIFIZIERT
Additional to unmodifi ed TLC and HPTLC layers, silicas with modifi cations 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.
MACHEREY-NAGEL GmbH & Co. KG · Neumann-Neander-Str. 6–8 · 52355 Düren · Deutschland FR:
FR: CH:
Tel.: +41 62 388 55 00 Fax: +41 62 388 55 05 E-Mail:
sales-ch@mn-net.com
Tel.: +49 24 21 969-0 Fax: +49 24 21 969-199 E-Mail:
info@mn-net.com
48500pr@reply-direct.com
Tel.: +33 388 68 22 68 Fax: +33 388 51 76 88 E-Mail:
sales-fr@mn-net.com
MACHEREY-NAGEL GmbH & Co. KG · Neumann-Neander-Str. 6–8 · 52355 Düren · Deutschland DE / International:
FR:
Tel.: +41 62 388 55 00 Fax: +41 62 388 55 05 E-Mail:
sales-ch@mn-net.com
Tel.: +33 388 68 22 68 Fax: +33 388 51 76 88 E-Mail:
sales-fr@mn-net.com
MACHEREY-NAGEL Manufacturer of premium chromatography media
n CHROMABOND® SPE columns
n NUCLEOSIL®, NUCLEODUR® and NUCLEOSHELL® HPLC columns
n TLC plates and sheets Find what you are looking for!
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Chromatography
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