S2 PICOFOX Brochure (PDF) - Bruker

TXRF principlebeam in the sample matrix. Resultingbenefits include a significantly enhancedfluorescence yield, largely reduced backgroundnoise, and consequently muchhigher sensitivities to elements presenteven in trace amounts.How does samplepreparation work?For TXRF the sample must be appliedon a polished carrier made of quartz oracrylic glass. In the case of liquid samplesor suspensions, a few microlitres arepipetted directly on a carrier and dried.Powder samples like soils, metals,pigments or biological samples can beapplied directly for qualitative analysis.A few particles or micrograms are sufficient.For quantitative analysis, powdersmust be suspended in a detergent solutionand pipetted onto the sample carrier.Filters, wipes, biological tissues andsmears require extraction in an ultrasonicbath. For the measurements, the extractsolutions are applied on the sample carrierwithout any further treatment.How often is acalibration required?The S2 PICOFOX comes factorycalibratedand ready to use. Day-to-dayquantification of unknown samples thenonly requires the addition of an internalstandard element, such as gallium. Dueto the thin sample layer, the fluorescenceintensity of an element is directly proportionalto its concentration in the sample.Quantitative analysis is highly accurate atall concentrations from ppb to 100 percent,and requires no further calibrationby the user.

Bruker Nano is continually improving its products and reserves the rightto change specifications without notice. © DOC-B81-EXS002, Rev. 3.2Technical dataS2 PICOFOXElement rangeConcentration ppb to 100 %Detection limitSample typesSample volumeSample carrierMo excitation: Al to U (with exception of Nb to Ru)W excitation: K to U< 3 pg Nickel (Mo excitation with High Efficiency Module)Liquids, suspensions, powders, particles, metals, thin layers,tissues, wipes, filters etc.Liquids and suspensions from 1 to 50 μlParticles up to 100 µm in diameter, powders up to 10 µg25 quartz and 100 acrylic glass carriers (30 mm diameter)included in deliverySample changer Manual version for single samplesAutomatic version with cassette for up to 25 samplesX-ray tubeX-ray opticsDetectorInterfaceMainsSizeWeightOptionsAccessories30 W or 40 W metal-ceramic, max. 50 kV, 1 mAair-cooled, Mo or W targetMultilayer monochromatorPeltier-cooled XFlash ® Silicon Drift DetectorNo need for liquid nitrogen30 mm² active areaEnergy resolution < 150 eV at 100 kcps (Mn Ka)Data exchange by RS232 serial interfaceSample changer with RS232 (automatic version)100/240 V, 50/60 Hz, max. power consumption 180 W300 x 590 x 450 mm (height x width x depth)37 kgGas purge option for improved detection of Ag and PdWashing cassette for sample carriersSample cassette for 25 carriersStarter Set for TXRF (pipettes, tips, racks, tubes, mortar , spatula)XFlash ® is a trademark of Bruker Nano GmbHBruker Nano GmbHBerlin · GermanyPhone +49 (30) 670990-0Fax +49 (30) 670990-30info@bruker-nano.dewww.bruker.comBruker AXS GmbHKarlsruhe · GermanyPhone +49 (721) 50997-0Fax +49 (7 21) 50997-5654info@bruker-axs.deBruker AXS Inc.Madison, WI · USAPhone +1 (608) 276-3000Fax +1 (608) 276-3006info@bruker-axs.com