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(Click for frequent words.) 66 pulsed plasma 64 Intravascular 63 Electrosurgical 63 GORE TAG Device 63 electrosurgical generator 62 HALO# [001] 62 Deadlinepix 61 Raw #/#/# Punjab 61 HALO# [002] 61 Anterior Cervical 61 fluorodeoxyglucose 61 diaphragm metering 61 Dual Wavelength 61 Spinal Cord Stimulator 61 Elekta Synergy R 61 Pressure Transducer 60 Nuclear Pharm Assist 60 Thoracic Endoprosthesis 60 intracardiac ultrasound catheter 60 VisuMax 60 NeuroCare diagnostic products 60 STARFlex ® 60 #VDC input 60 computed tomographic 60 #HT [003] 60 EOSINT M 59 Investigational eFlow 59 OVATIO 59 implantable pulse 59 HOUSE Remains 59 Endologix Powerlink System 59 Vital Signs Monitor 59 NAVISTAR R 59 intensity modulated 59 MultiWave 59 Storage Made Simple 59 rotary vane 59 Pedicle Screw System 59 IVUS imaging 59 Isolators 59 NanoBridge 59 Attrius ™ PET 59 #/#Hz [001] 58 automated radiopharmaceutical distribution 58 Symplicity Catheter System 58 DO NOT EMAIL 58 cadmium zinc telluride 58 PowerPAK 58 BrightLase 58 Anthony Boissiere FRA 58 YAG lasers 58 Continuous Emission 58 Fractionated 58 PROMUS TM 58 Urinary Catheters 58 Intrinsically safe 58 Diode Laser 58 Near Infrared NIR 58 Curon Control 58 tunable diode laser 58 Hans BioShaft 58 Absorbable 58 viscoelastics 58 transthoracic 58 Artificial Disc 58 Flowmeter 58 CardioSEAL 58 Biopsy System 58 EDXRF 58 transapical aortic valve 58 autoclavable 58 HuMax Wnt 58 Evalve MitraClip R 58 Dynabeads 58 Dural Regeneration Matrix 58 Laser Marking 58 endoluminal stent graft 58 Vascular Grafts 58 Peristaltic 58 Left Ventricular Assist 58 DEV DA TOMAR NEXT 57 microfocus 57 sintered steel 57 eBx 57 R Paclitaxel Eluting 57 Axxent 57 nanopositioning stages 57 Cannula 57 disposable catheter 57 Coronary Imaging 57 functional mitral regurgitation 57 Confocal 57 Microcatheter 57 transcutaneous 57 #L# [002] 57 Tomography OCT 57 thermocouple RTD 57 UV Visible 57 DPSS laser 57 Laser Scanners 57 thoracolumbar spine 57 Vasomedical enhanced 57 testo 57 BGA rework 57 VSDs 57 fiber Bragg gratings 57 DR# [002] 57 Waters SYNAPT 57 Printhead 57 Vascular Graft 57 Dolby Digital Dolby 57 Solenoid Valve 57 PEAK PlasmaBlade 57 servo amplifiers 57 piston pumps 57 Intensity Modulated 57 DUROS 57 transcranial 57 Scintigraphy 57 ModBus 57 Sarnoff TakeCharge 57 servo controllers 57 EFOY Pro 57 vinorelbine tartrate 57 Brushless DC 57 vapreotide acetate 57 ORLive Presents 57 Pressure Sensor 57 SpideRX 57 Chip SoC System 57 RF Amplifiers 57 pulsed Doppler 57 voltage divider 57 Everolimus Eluting Coronary Stent 57 TrueFocus 57 transurethral 57 Uncooled 57 Quiescent current 57 pneumatic hydraulic 57 manifold assemblies 56 Nd YAG 56 electret 56 electronically commutated 56 TIM# 56 #nm laser [002] 56 Chemical Vapor Deposition CVD 56 Image Intensifier 56 Fabry Perot 56 Nd YAG lasers 56 TrueBeam STx 56 Lumbar Interbody Fusion 56 QUANTUM Platesetter 56 ultrasound transducers 56 pH electrode 56 Explosion Proof 56 Foveon X3 56 Healon R 56 Intra operative 56 Pulse Oximeter 56 Announces FDA Clearance 56 Stereotactic radiosurgery 56 Embolic Protection System 56 Biologics Delivery 56 Oxidizer 56 SEGGER 56 External Beam 56 Prognostic significance 56 HeartMate ® 56 Aplio MX 56 intracavitary 56 Strain Gauge 56 #.#VDC 56 TOF TOF 56 Mechanical ventilation 56 DuraGen Plus 56 Image Guided Radiation Therapy 56 proprietary Zone Sonography 56 Nerve Stimulation 56 ™ Everolimus Eluting 56 Beamex 56 PressureWire Certus 56 Varistors 56 Differential Pressure 56 Palletizer 56 videoscope 56 TappingMode 56 endovascular stent graft 56 PlasmaBlade 56 Attrius TM PET 56 Thermal Weapon Sight 56 #AT 56 Edwards SAPIEN XT 56 absolute rotary encoders 56 IEPE 56 flux vector 56 GentleLASE 56 bearingless 56 Excimer 56 transesophageal echocardiography 56 Magnetic resonance 56 INTELLITEMP ® Energy 56 solvent detergent 56 laser diode modules 56 Interspinous 56 Cervical Plate 56 Ablation System 56 Advanced Microspheres 56 Calorimeter 56 interspinous process 56 Automatic Fuel 56 Selective Catalytic Reduction 56 Interferometric 56 Scanning Probe 56 TM Everolimus Eluting 56 tri acid digestion 56 Exlar 56 Aplio TM 56 Left Atrial Appendage 56 Hydrogen Generator 56 IntraLase FS 56 CD HORIZON 56 dielectric fluids 56 GreenLight HPS 56 Veeco Introduces 56 sterilizable 56 Multistream 56 Ion Trap 56 PROMUS Element 56 stereotactic radiotherapy 56 anomalous dispersion 56 INTRABEAM 56 #nm wavelength [001] 56 Contrast Enhanced 56 Volumetric Modulated Arc 56 V3D 56 Toroidal 56 Inverter Charger 56 Toshiba Infinix 56 AN/AAQ-# 56 interbody 55 iScience 55 SoftScan ® 55 corona discharge 55 CopperHead 55 Tomography SPECT 55 Quick Disconnect 55 thoracoscope 55 TECNIS R 55 percutaneous aortic valve 55 metering pumps 55 J Foot Ankle 55 Color Doppler 55 MR Angiography 55 R KLEAR R 55 Neon Flex 55 MicroTurbine 55 0 dBm 55 Prodrug TAP technology 55 Vaporization 55 GORE TAG 55 radiofrequency RF 55 mm f/#.# ASPH 55 Agilent PNA 55 GliaSite 55 Plus STAARVISC TM 55 Endoscope 55 PICC WAND 55 Single Photon Emission Computed 55 REVELATION Helix 55 Keithley Model 55 Chemical Vapor Deposition 55 centrifugal pump 55 pressurizers 55 Ultrafiltration 55 4kV 55 Temposonics 55 Maxon Motor 55 computed tomography CT scanner 55 oxide semiconductor 55 refractory recurrent 55 PRO# [003] 55 TTL CMOS 55 Zener diodes 55 Crit Line 55 microplate format 55 Force Microscopy 55 Demineralized Bone Matrix 55 LI #B 55 TRITIUM 55 THERMOCOOL R 55 Endovascular System 55 AN/PVS-# 55 OPTIMASS 55 slotless 55 SENSOR 55 rotary actuators 55 Shellgel TM injectable viscoelastic 55 Cone Beam Computed Tomography 55 Dural Sealant 55 Luxtron 55 aqueous electrolyte 55 PET CT fusion 55 Cardiac ablation 55 Hemodiafiltration 55 S Nikkor 55 Thermocouple 55 microfocus X ray 55 HydroFix 55 Acuson S# 55 quantum cascade 55 dual triode 55 Signal Generator 55 brachytherapy applicator 55 Erbium 55 bioabsorbable polymer 55 Vacuum Assisted Closure 55 modulators demodulators 55 Photodynamic 55 Mass Spectrometry MS 55 Thrombectomy System 55 Mg Uk 55 GEMS TM 55 INTRABEAM ® 55 vapor compression 55 Absorption Spectroscopy 55 AneuRx AAAdvantage 55 Intuitive Surgical da Vinci 55 scroll compressors 55 microcatheters 55 Electron beam 55 OptoCooler HV# 55 Rechargeable Lithium 55 Eco Cranes 55 Acculis 55 Chainflex 55 liquid chromatograph 55 linacs 55 electro-optical/infrared 55 robust interlibrary loan 55 Healon ® viscoelastics 55 servo controller 55 Immunoassay System 55 Iontophoresis 55 Position Sensors 55 Solar Inverter 55 Sample Processor 55 Ultrasonographic 55 fxP 55 TM Embolic Protection 55 Pulsed 55 Gas Analyzer 55 mA output 55 impedance measurements 55 Photomology 55 Nitrogen Generator 55 Optical Biopsy System 55 Nikon AF 55 Starter Generator 55 Capillary Electrophoresis 55 hypervascular tumors 55 Vapor Phase 55 Attenuator 55 Tantalum Capacitors 55 Elekta Synergy ® 55 wire mesh filter 55 MRidium 55 Sinumerik 55 electromagnetic motors 55 gear reducers 55 Coronary Angiography 55 Mach Zehnder modulator 55 ® KLEAR ® 55 Frequency Synthesizer 55 IMPLANT 55 Spectranetics laser 55 aero derivative 55 transmural 55 VersaFoam 55 sterile disposable 55 Cone Beam 55 TDR TDT 55 SpyGlass System 55 Er YAG 55 Sysmex XE 55 E #mm f/4L 55 Condenser 55 ophthalmoscopes 55 Tissue Matrix 55 Stereotactic body 55 Dual Voltage 55 ANVIS HUD 55 Metrology System 55 Accelerated Partial Breast Irradiation 55 Fusion Splicer 55 Nd YAG laser 55 BoneScalpel 55 HD CMOS Image 55 Embozene TM Color 55 impedance spectroscopy 55 BioSTAR ® 55 PRINT Image Matching 54 catheters guidewires 54 percutaneous catheter 54 Vacuum Pumps 54 Minn Kota ® 54 TLIF 54 Laminator 54 expanded polytetrafluoroethylene 54 MAX#A 54 peristaltic pumps 54 Aspheric 54 crystalline photovoltaic 54 inductively coupled 54 SmartFlow 54 replacement PAVR 54 modified sine wave 54 holmium laser 54 bDNA 54 lithium thionyl chloride 54 progressing cavity 54 5Vdc 54 Vehicle Mounted 54 attenuation correction 54 Guava PCA 54 Diamondback #deg 54 Liqui Cel ® 54 Biphasic 54 Wafer polifeprosan 54 PEEK OPTIMA ® 54 H#O# 54 Valiant Thoracic Stent Graft 54 Metal Halide 54 Selective Soldering 54 kW generator 54 ExAblate R 54 piezo actuator 54 Techwell TW# 54 vein ablation 54 LTR# 54 ProSafe RS 54 directional couplers 54 Brushless 54 REUTERS Claro Cortes 54 VideoCore ® 54 iglide 54 Agilent #A [002] 54 scroll compressor 54 Input voltage 54 Ultra Miniature 54 Integra NeuroSciences 54 piezo actuators 54 Intensity Modulated Radiation Therapy 54 Evaporator 54 Endoscopic Vessel Harvesting 54 Potentiometers 54 RON SP STCL 54 #.#T MRI 54 Handpiece 54 Foundation fieldbus 54 Spinal System 54 Input Voltage 54 Infusion System 54 Linear Accelerators 54 Minimally Invasive Procedure 54 Fiber Optic Transceiver 54 Chrysler #,#.# L 54 axial flux 54 VALVES 54 pulsed electromagnetic field 54 Star SAFIRE 54 Butterfly Valves 54 PEEK OPTIMA 54 pneumatic actuators 54 Endoscopic ultrasound 54 Mammography Equipment 54 pulsed IV 54 Capstone MicroTurbine 54 Vascular Closure Device 54 austriamicrosystems Introduces 54 piezoelectric transducer 54 opto electrical 54 Steerable 54 argon plasma 54 positron emitting 54 elos 54 servomotor 54 AVCHD Playback 54 liquid embolic 54 MRV Fiber Driver 54 logarithmic amplifiers 54 sliding vane 54 Adaptive Radiation Therapy 54 Biolimus A9 54 Devices PTCs 54 microelectromechanical 54 ablate destroy soft 54 Electrosurgical Generator 54 #mm Bushmaster 54 lithotripter 54 Mitomycin C 54 ferrite core 54 Multi Sensor 54 Diesel Particulate Filters 54 OptiCell 54 Stimulated Emission 54 drug zotarolimus 54 Forward Looking IVUS 54 GORE TAG Thoracic Endoprosthesis 54 Conformal 54 Sorption 54 Remote Magnetic Navigation 54 Circular Saws 54 multisensor 54 SWIR cameras 54 Dust Collector 54 laser illuminator 54 XIENCE TM 54 Savings Module ESM 54 Desorption 54 ImageChecker 54 Microchannel 54 Flowmeters 54 carboxypeptidase 54 Satellite Modems 54 CorMatrix ECM 54 Interactive Orthopedic 54 craniomaxillofacial 54 inductive sensor 54 Flat Panel Detector 54 HDVR 54 produced plasma LPP 54 DryLin 54 Excitation 54 Photodiode 54 samarium cobalt 54 TruLaser 54 T#C [003] 54 RyMed 54 Balloon Kyphoplasty 54 Power Conditioner 54 electron beam welding 54 torque transducers 54 Schottky Diode 54 Xcelerant Delivery System 54 Electro Optical Targeting 54 ablates 54 SpineJet 54 #nm #nm [003] 54 electro pneumatic 54 CalMAN 54 da Vinci r 54 Micro Incubation System 54 Impedance 54 Li ion rechargeable battery 54 CO2 lasers 54 UV VIS 54 Cavitation 54 Sinamics S# 54 mask aligner 54 CAT MATE 54 5kV 54 InnerArmor 54 myocardial revascularization 54 2MW D8 model 54 AMVISC ® AMVISC ® 54 Microwave Ablation System 54 split blade retractor 54 REGZA LINK HDMI CEC 54 Position Sensor 54 Analysers 54 vehicular amplifier 54 2DR 54 Snowden Pencer ® 54 Headphone Amplifier 54 infinitely variable transmission 54 optically coupled 54 electromotive force 54 R#A [001] 54 Praesideo 54 rocuronium bromide 54 MB#K# 54 Dynamic Stabilization 54 fundus camera 54 SpineAlign 54 servo amplifier 54 #G# [002] 54 eFlow ® 54 inductive proximity 54 Transcranial Magnetic Stimulation 54 heat shrinkable tubing 54 opto mechanical 54 local oscillator LO 54 diaphragm pump 54 ± 5V 54 microphone preamplifier 54 Needleless 54 microlens array 54 Ultrasound Imaging 54 Transmit Receive 54 DATUM 54 NIOX 54 GORE TAG ® 54 RX ACCULINK 54 Embrella Embolic Deflector 54 Infrared Sensor 54 Imaging MRI 54 Co2 laser 54 Collimator 54 sestamibi 54 screw compressors 54 ADVIA Centaur 54 VNUS Closure 54 AM6 54 DynaCT 54 BY ADRIAN NEMES 54 Leak Detector 54 AuraGen 54 hydraulic pneumatic 54 optical biosensor 54 Optical Coherence Tomography OCT 54 EOE M F 54 ultrasonic scalers 54 By Arek Sarkissian 54 Clinac ® 54 Stereolithography SLA 54 Biliary System 54 SCHUNK 54 T1 weighted 54 Chemoradiation 53 2kHz 53 LSE AIM PTX 53 Signal Conditioner 53 Mammotome ® 53 fluoroscopic imaging 53 Nick Oliveri Mondo 53 Investigational eFlow Nebulizer System 53 Gamma Cameras 53 Op Amps 53 ClearVid CMOS Sensor 53 Diodes Incorporated Announces 53 blisks 53 Permanent Magnet 53 Automated Urine Microscopy Analyzer 53 Focused Ultrasound 53 BY FRANK RADOSEVICH 53 sutureless 53 Occlusion 53 Cardica designs 53 Endotracheal Tube 53 nicotinamide adenine dinucleotide 53 Skin Tightening 53 Secca System 53 color Doppler 53 Barocycler 53 Fiber Bragg Grating 53 Positron Emission Tomography Computed 53 5V supply 53 Spinal Implant 53 UltraCell XX# 53 volumetric modulated arc 53 #Vrms 53 femtosecond lasers 53 AMVISC R AMVISC R 53 Distal Radius 53 Ikoniscope 53 inkjet printers UV 53 Stereotaxis System 53 #.#uF 53 Spectrophotometers 53 Patient Controlled Analgesia 53 electro static 53 Intracardiac 53 Hydraulic Lift 53 accumulate preferentially 53 TORR TM 53 Reflow Oven 53 Surgical Instruments 53 Exif Print 53 +# oC 53 kidney urologic 53 ablate tissue 53 magnetron sputtering 53 M8 M# 53 Wavestream Corporation 53 EV# [003] 53 intravascular 53 Nikon VR 53 amplitude modulated 53 Axxent ® 53 Breast Biopsy 53 DTE Recorder 53 mCi 53 Sitrans 53 NanoChip R 53 Hydrostatic 53 Picosecond 53 fiberscopes 53 Infusion pumps 53 filter housings 53 function arbitrary waveform 53 Vascular Stent 53 fluorodeoxyglucose FDG 53 Dye Sublimation 53 LOGIQ 53 CRIUS 53 leadless 53 photoionization detectors 53 Exmor ™ 53 STARFlex 53 flexible endoscope 53 WISchip 53 Mercury5e 53 Excimer laser 53 Autograft 53 polyphase 53 AN/VRC-# 53 includes Dideco CarboMedics 53 Stretta 53 Microgravity Science Glovebox 53 brachytherapy seed 53 Guided Focused Ultrasound 53 BIO SET 53 Sirolimus eluting Coronary Stent 53 AUTOMATIC WITH OVERDRIVE 53 AXIOM Artis 53 hollow cathode 53 model A# 53 prophy paste 53 Anti Bacterial Envelope 53 OnControl 53 waterjet machining 53 ISOBUS 53 percutaneous coronary 53 Nebulizers 53 Ultraview 53 Adsorbent 53 feedthrough 53 #/#V 53 Adsorption 53 Simitri HD 53 tricalcium phosphate 53 anastomotic devices 53 Fastcam 53 STERRAD 53 supercritical steam 53 NADiA 53 Ductile Iron 53 IM# [002] 53 Infrared IR 53 quasi resonant 53 centrifugal compressor 53 WaterCycle 53 excess blasts RAEB 53 treat vertebral compression 53 bearingless fully magnetically levitated 53 BY DOUGLAS HANKS 53 SynchroMed 53 Excimer Laser 53 surgical resection cavity 53 IDET 53 Transcranial 53 Reciprocating Saw 53 lowpass filter 53 NanoDrop 53 myocardial tissue 53 RAP4 T# 53 frequency transducers 53 Heat Dissipation 53 liver resection surgeries 53 Stocking distributor 53 phlebectomy 53 NEBIDO VANTAS SUPPRELIN LA 53 Compact Flash socket 53 self expanding nitinol 53 SourceMeter 53 PRODUCT TEST 53 Cardiac Resynchronization Therapy 53 Dynamic Light Scattering 53 HTS# [002] 53 Diode lasers 53 iCoupler 53 DIN rail mounted 53 Optical Coherence Tomography 53 electromagnetic flowmeter 53 ® Vertebral Augmentation 53 utilize proton beam 53 Drug Eluting Coronary Stent 53 CLiRpath 53 radiation therapy IMRT 53 Linear Actuator 53 Phased Array 53 rhITF 53 Raytheon Delivers 53 laser triangulation 53 Photopneumatic 53 Aftertreatment 53 Pulsar Max 53 DIGIC III Image Processor 53 Gen5 53 DIN rail mountable 53 SPECT Single Photon 53 radiofrequency RF energy 53 piezo resistive 53 cautery 53 ECHO ® KABIKILLER 53 AN/VRC-# vehicular amplifier 53 carpet extractor 53 small incision cataract 53 electrochemical sensor 53 X ray ultrasound 53 remotely controllable 53 laser diode module 53 cardiac septal repair 53 Dip Pen Nanolithography ® 53 ferrites 53 4D imaging 53 biliary stent 53 brachytherapy seeds 53 Surge Suppressors 53 PROPRIO FOOT 53 Synapt 53 Surgical Navigation 53 multislice 53 OEM stampings & 53 sutures staples 53 EnCor 53 GaAs FETs 53 implanted stimulator 53 Actuated 53 Mass Flow Meter 53 RF Kyphoplasty 53 iMRI 53 diathermy 53 Axial Flux 53 Piab 53 Lens Shift 53 Simatic S7 53 cited krypton strontium 53 iridix 53 disposable handpieces 53 GelSprinter 53 Named Exclusive Distributor 53 Palletizing 53 external counterpulsation systems 53 FlowMaster 53 Patient Charting 53 Accuray CyberKnife 53 Micrometer 53 Rimage Producer 53 photocoagulation 53 Autonomic Logistics Information 53 @ techPowerUp 53 catheter securement 53 diaphragm valves 53 hematology analyzers 53 Intrathecal 53 photon laser 53 zener diodes 53 Cavity Ring Down 53 Requires 4G 53 intracardiac 53 electrothermal 53 electrokinetic 53 Pulse Generator 53 Immunodiagnostic System 53 EverFlex 53 Dantrium R 53 ballscrews 53 By LEO SHANE 53 StarClose 53 Canon DIGIC DV 53 Metallic Paint 53 MiniArc Precise 53 Wafer Bonding 53 laser ablation 53 breakthrough MRgFUS technology 53 REPAIR OF 53 By PAYTON TOWNS 53 corrosive fluids 53 peristaltic pump 53 Evaporative 53 piezoelectric crystal 53 #Kw [002] 53 monochromators 53 SonicOne 53 By Nate Delesline 53 targeted muscle reinnervation 53 volts AC 53 Aquadex 53 #V #A 53 Monoblock 53 OxiMax 53 EVICEL 53 Recirculating 53 Inductors 53 Thoratec HeartMate 53 Hydrogen Generation 53 LC MALDI 53 components guidewires laparoscopic 53 parameter measurements 53 Positive Temperature Coefficient 53 isoPower 53 DTS Neo 6 53 Dresser Masoneilan 52 spinal cord stimulation SCS 52 Timing Belts 52 wet FGD 52 OSTAR Compact 52 KL4 Surfactant 52 #kW electric 52 electromagnetic coils 52 implantable infusion 52 Stratasys FDM 52 novel synthetic peptide 52 Helixate R 52 IRDye 52 AutoMed 52 piezoelectric sensors 52 FT4 52 #mb PowerBook G4 52 BY MARCUS THOMPSON 52 Cummins Particulate Filter 52 #EX [002] 52 phoenix x ray 52 Percutaneous Transluminal Coronary Angioplasty 52 Vertebral Body Replacement 52 includes sterilizers environmental 52 Calibrator 52 induced fluorescence 52 esophagogastric 52 bipropellant 52 AVOX 52 pneumatically driven 52 microelectrode array 52 PresbyLens ® 52 Fed. Cl 52 metered dose inhaler MDI 52 TTi Thurlby Thandar Instruments 52 OP# [002] 52 biocompatible polymer 52 superconductive wire 52 VRMS 52 Volumex Daxor single 52 motors transformers 52 CO2 HEART LASER 52 RP Processor 52 Leica M# 52 tri axial 52 3T MR 52 Thermo Scientific LTQ Orbitrap 52 Spectrometers 52 Left Ventricular Assist Device 52 Computed Radiography 52 photomultipliers 52 SRX R# 52 Fuel Reformer 52 NRAM TM 52 Thermal Weapon Sights 52 Finite Element Method 52 positron emission tomography computed 52 micropump 52 DIN Rail 52 PIN photodiode 52 BY LAWRENCE LATANE 52 Miniaturized 52 Wescam MX 52 Waveguide 52 CytoSorb 52 mertansine 52 Orthopedic Implant 52 Myeloperoxidase 52 Direct Visualization 52 General Electric CF6 52 Clearant Process 52 Imaging MBI 52 eFlow R 52 Multilayer Ceramic 52 #AX# 52 radial leaded 52 ablations 52 Aixtron MOCVD 52 implants sterilized 52 Variable Frequency Drives 52 Implantable Pulse Generator 52 intravesical infusion therapy 52 PSET ® 52 BY GUILLERMO 52 maxon 52 magnetostrictive 52 ispPAC 52 PIN diodes 52 Transurethral Resection 52 BTU hr 52 transformers inductors 52 voltage derating 52 RealHand 52 HOGEN 52 Epi LASIK 52 potentiometric