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ChromJournalInnoVAtIVe pRoducts foR chRomAtoGRAphysGe diamond syringe range...brilliance from manual to autosamplerand instrument applicationsThe Diamond syringe range fromSGE offers a never before seenlevel of durability, clarity andaccuracy in the laboratory. Noother syringe range provides suchbrilliance! New applications arethen possibledurabilityenhancements to the Diamond syringesresult in:• Improved solvent resistance• Greater temperature ranges• Increased operational smoothnessthese improvements deliver longer syringelife, and an improved cycle life of up toten times that of a similar non Diamondsyringe.Diamond syringes for autosamplers andinstrumentsDiamond syringes for autosamplers andinstruments incorporate a vibrant colourscheme distinguished by volume enablingeasy identification of installed syringes.AccuracyDiamond syringes offer a new level ofaccuracy in the laboratory. SGe Diamondsyringes have been enhanced to eliminateareas where fluid can become trappedand potentially cause carry-over. a closerfit between plunger tip and PTFE insert atthe zero position, a tighter fit between thePtFe insert and glass barrel and improvedneedle attachments, all help to reducecarry-over.SGe syringesCompetitors syringethe Diamond syringe designenhancements have significantly reducedadhesive from the fluid path. This adds tothe durability of the syringe and reducesthe risk of sample interaction with theadhesive.claritydiamond syringes formanual useManual Diamond syringes have a sharpblack scale and ‘bright white’ backingmaximising contrast. the syringes are easyto-usewith excellent readability, aidingconsistent delivery of samples andprecise results.SGe Diamond syringeThe GC/MS traces below show noadhesive contamination with Diamondsyringes compared to other syringescurrently available.GC/MS traces from three syringes currently available in the marketshowing peaks identified as being components of adhesives.12VWR InteRnatIonal I chromJournal Issue 12 I 2012
For more information on these products contact your local VWR sales office, sendan e-mail to chromjournal@eu.vwr.com or visit our website www.vwr.comFurther enhance your Syringe Brilliance bycoupling a Diamond syringe to eVol ® , theworld’s first digital analytical syringe.eVol ® is a complete dispensing solutionwith a broad range of functions anduses. the winner of an R&D award forInnovation, eVol ® revolutionises the wayyour laboratory works and the paceof sample processing. Coupled with aDiamond syringe, eVol ® speeds up andsimplifies workflow, improves accuracy andreproducibility and standardises results, allindependent of operator skill.eVol ® is the coupling of two precisiondevices: a digitally controlled electronicdrive and an XCHanGe ® (patent pending)enabled analytical Diamond syringe.“DISPENSING ACCURACY - Visitors at a recent Pittsburgh Conference on Analytical Chemistry and AppliedSpectroscopy (Pittcon) used both a manual syringe and an eVol ® coupled with a Diamond syringe todispense a target volume of 491.5 µl. the results demonstrate eVol ® 's significantly superior accuracy andreproducibility independent of operator.”the result is a digitally controlledpositive displacement dispensing systemprogrammable to reproducibly andaccurately perform a wide variety ofliquid handling procedures. Unlike airdisplacement devices, eVol ® is the perfectsolution for accurately aspirating anddispensing both aqueous and nonaqueous liquids.the range of eVol ® analytical Diamondsyringes accurately aspirates and dispensesvolumes from 200 nl to 500 μl atvariable speeds. eVol ® is easily calibrated,complies with stringent global standards,is programmable and can be passwordprotected. It is ergonomic, comfortableand easy-to-use.use eVol ® for anymanual syringe application….Preparation of internal calibration standards;addition of internal calibration standards tosamples; addition of derivatisation reagentsto samples; addition of non aqueous reagentsto samples; preparation of surrogate samples;instrument injections (GC/LC).Sample matrix exchange and clean-up usingMePS; serial dilutions; micro-titrations;tlC spotting; routine dispensing; precisemeasurement; spiking; quantitative NMR(access the bottom of your tubes).examples of how award winning eVol ® coupled with a Diamond syringe improves laboratoryProcess Without eVol ® With eVol ® eVol ® benefitsStandardpreparationAddition ofstandardsDelivery ofderivatisationagentsSerial dilutionsStandards prepared in a large volume flask. Fromthis standard aliquots are individually dispensedinto autosampler vials.Small amounts of standard aspirated and dispensedinto all samples before being transferred to anautosampler vial.Laboratory staff required to work in a fume hoodwith potentially hazardous materials, to preparecombinations of derivatisation agents in open vials.Transfer of a small amount of solution to anothercontainer. Solvent added to achieve the requiredvolume. This is repeated multiple times to obtainthe required final accurate concentration.standards are made up directlyin the vial, including the make upsolvent.one aspiration and a fast seriesof repeated accurate dispensesdirectly into vials.process completed with eVol ®programmed to aspirate an amountof solvent or agent and thendispense aliquots into sealed vials,single-handed operation.one aspiration of the solutioncan be dispensed directly into thesolvent to achieve the requiredaccurate concentration.• Less glassware usage• Reduces waste fluid• Significant time saving• Improved accuracy and reproducibility• Significant time saving• Improved accuracy and reproducibility• Improved operator safety, lower spill and splash risk• Ergonomic benefits behind fume hood screen• Improved accuracy and reproducibility• Less glassware use• Complete workflow simplification• Significant time savings• Improved accuracy• Less solvent required• Less glassware usedchromJournal Issue 12 I 2012 I VWR InteRnatIonal 13
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