- VARIAN STAR CHROMATOGRAPHY WORKSTATION MANUAL MANUAL
- VARIAN STAR CHROMATOGRAPHY WORKSTATION MANUAL SOFTWARE
In addition, this study confirmed that the PFPD response is nearly quadratic with respect to concentration for all volatile sulphur compounds. The AIS is recommended as a reliable and cost-effective measure of detection limit for volatile sulphur compounds by GC-PFPD, since the AIS is easier and faster to determine than the MDL and the Hubaux–Vos detection limit. Sulphur detectivities are well correlated with AIS values but only poorly correlated with MDL values.
Bioz Stars score: 90/100, based on 1 PubMed citations.
VARIAN STAR CHROMATOGRAPHY WORKSTATION MANUAL SOFTWARE
The Hubaux–Vos detection limits and the AIS values are several times higher than the MDL, and provide more conservative estimates of the lowest concentrations that can be reliably detected. Varian Medical galaxie chromatography workstation software Galaxie Chromatography Workstation Software, supplied by Varian Medical, used in various techniques.
The results show that the MDL determined by the US Environmental Protection Agency procedure consistently underestimates the minimum concentrations of volatile sulphur compounds that can be practically distinguished from the background noise with the PFPD. This section describes the keyboard and display layout and functions, and gives step-by-step instructions for configuring and building methods on the 3800 Gas Chromatograph. After measuring the PFPD response versus concentration, the method detection limit (MDL), the Hubaux–Vos detection limit ( x D), the absolute instrument sensitivity (AIS), and the sulphur detectivity ( D s) were determined for each sulphur compound. CP-3800 GC Operator’s Manual1 3800 Keyboard and Display The 3800 keyboard and display is an integrated user interface designed for maximum ease of learning and ease of use. Gas standards containing hydrogen sulphide (H 2S), carbonyl sulphide (COS), sulphur dioxide (SO 2), methyl mercaptan (CH 3SH), dimethyl sulphide (DMS), carbon disulphide (CS 2), and dimethyl disulphide (DMDS) in concentrations varying from 0.36 ppb (v/v) up to 1.5 ppm (v/v) in nitrogen were prepared with permeation tubes and introduced in the gas chromatograph using a 0.25-ml gas sampling loop. Yes, I have a call in to tech support Varian.This paper addresses the variations that presently exist regarding the definition, determination, and reporting of detection limits for volatile sulphur compounds by gas chromatography with pulsed flame photometric detection (GC-PFPD).
Permits syringe washing with up to two solvents (Liquid. What needs to happen at the end of my method to cause the second sample to get injected? May be controlled from the Varian Star Chromatography Workstation or other. So, I could use some suggestions from folks using similar systems. I've also tried touching the lines together manually (which would be the same as a contact closure), but neither seems to trigger the start of another run. I've got a contact closure at the end of my current method, which I thought was supposed to trigger the autosampler to start, but that doesn't seem to be working. The autosampler does its thing, and starts the clock on the computer upon injection. As long as I click "run" on the computer to get the computer to "waiting for inject" (I have an "inject wait" on my first step of my method), then start in the autosampler window (on the computer), the first run starts fine. (One of the three - another one is already used to communicate with the UV-vis.)
VARIAN STAR CHROMATOGRAPHY WORKSTATION MANUAL MANUAL
(My manual autosamplers use the same method.) And it is connected via P2 to the aux (?) connection on the pump, which are supposed to signal it to start the next run, I think. It also is connected via P1 outputs to the pump, doing a contact closure upon autosampler injection. My autosampler is connected via flat (DB9?) cable in the same chain as the pumps, UV module, and computer. I've been trying to work through the Star manual, the autosampler manual, and the 215 manual, but I'm a bit stuck. I have an old Varian modular system - computer (windows 98) running Star 5.5, a couple of 215 pumps, UV module (320) and am trying to add a new (used) 410 autosampler.
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