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#Varian star chromatography workstation manual manual
#Varian star chromatography workstation manual plus

Analog detector outputs: two with selectable absorbance range of 0.Alien Vs Predator Game Video, also called Alien Vs Predator Game Video 3 or Alien Vs Predator Game Video3 to differentiate it from earlier names, is a 2010 video game developed by Rebellion and published by SEGA for its PlayStation 3, Xbox 360 and PC.

Response time: selectable 0.05, 0.5, 1, and 2 sec.

Absorbance range: up to 70 AU with preparative flow cell.

Linearity: with acetone in water analytical 1% to 2 AU preparative 1% to 20 AU at 265 nm.

Noise, dry cell: Typically, ☓x10-6 AU peak-to-peak at 254/280 nm, 2 sec.

Noise, dual wave length: ☑0x10-6 AU peak-to-peak at 254/280 nm, 2 sec.

Noise, single wave length: ±5x10-6 AU peak-to-peak at 254/280 nm, 2 sec.

Light sources: Deuterium for UV and quartz halogen for Vis.

Easy-access needle, injector valve and syringe for quick maintenance.

Cooling and biocompatibility options available.

High-resolution syringe design for maximum reproducibility.

#Varian star chromatography workstation manual manual

Internal standard addition, sample dilution, or derivatization steps are easily programmed to reduce sample preparation time and errors due to manual procedures.

#Varian star chromatography workstation manual plus

Sample trays in 3 configurations: 96 standard 1.5mL vials 84 standard 2 mL vials plus 3 10 mL vials for mix solvents 24 10 mL vials for large injection volumes.Bus communication: The 230 solvent delivery systems communicate with the Star Workstation by means of the IEEE 488 Bus (GPIB).Contact closure inputs: Three synchronization signals: READY, START, and FAULT.

Contact closure outputs: Six time-programmable external event relays, and three synchronization signals: READY, START, and FAULT.Display: 40 Characters, double-line, back-lit LCD.Mixing: High pressure, static or dynamic mixing modes.Proportioning modes: 1, 2, or 4-stroke (user selectable).Pressure pulsation: Less than 2% at 150 atmospheres (1 mL/min with 100% isopropyl alcohol).

Delay volume: 700 µL + 1 µL/ATM pressure.

Compositional precision: ± 0.1% absolute.

Compositional accuracy: ± 0.5% absolute.

Flow accuracy: ± 0.5% at 1.0 mL/min isopropyl alcohol.

Flow precision: 0.3% RSD at 1.0 mL/min MeOH/water.

Flow rate range: 0.01 to 10.0 mL/min in 0.01 mL/min steps between 0.00 and 1.00 mL/min, and 0.1 mL/min steps between 1.0 and 10.0 mL/min.

Maximum operating pressure: 6000 psi (410 atmospheres).

The Varian HPLC we have has three major components: ProStar 230 Solvent Delivery Module, 410 Autosampler, and 325 Dual Wavelength UV-Vis Detector. This allows for a better separation on columns of shorter length when compared to ordinary column chromatography. The increased density arises from smaller particle sizes. With HPLC, a pump (rather than gravity) provides the higher pressure required to move the mobile phase and analyte through the densely packed column.

It is a form of liquid chromatography that utilizes smaller column size, smaller media inside the column, and higher mobile phase pressures. Analyte retention time varies depending on the strength of its interactions with the stationary phase, the ratio/composition of solvent(s) used, and the flow rate of the mobile phase. UV/Vis spectroscopic data for analyte if so equipped). The detector may also provide additional information related to the analyte, (i.e. HPLC typically utilizes different types of stationary phases, a pump that moves the mobile phase(s) and analyte through the column, and a detector to provide a characteristic retention time for the analyte. High-performance liquid chromatography (sometimes referred to as high-pressure liquid chromatography), HPLC, is a chromatographic technique that can separate a mixture of compounds and is used in biochemistry and analytical chemistry to identify, quantify and purify the individual components of the mixture.