History [Bioanalytics]
Mon capitaine!
Almost.
But due to mercy of a (little) more recent birth I hadn’t to fiddle around with strip-chart recorders, scissors and weighing of clipped peaks. My first HPLC was a Spectra Physics SP8000 (nice: ternary gradient, column oven, and roughly twenty 12" circuit boards making up the data system). We had one of these HP integrators connected to a GC as well. Both printed ‘integration marks’ on the chromatogram – no baseline. Theoretically it was possible to change the settings and look at new marks, change again, and get stuck in something like:
I think the first systems where you could actually see the baseline on screen were LDC/Milton Roy’s CCM and the Altex Scientific 324 introduced in the early 1980s. Microcassettes! Proprietary BASIC!! Moving around the chromatogram by means of arrow-keys (the mouse wasn’t invented yet…)!!!
BTW, this was also the age of the infamous WISP 712 (Waters Intelligent Sample Processor) – which was renamed by my friends at the Sandoz Research Institute to WUSP (Waters Unintelligent Sample Processor) because it was notorious for trying to slam the needle through the bottom of sample vials or into the back of the analyst’s hand changing the 48 (!) sample tray.
❝ Ah, you mean something like "If we'd had properly working integration systems back in the 60'ies then you wouldn't have been born" or something along those lines?
Almost.
But due to mercy of a (little) more recent birth I hadn’t to fiddle around with strip-chart recorders, scissors and weighing of clipped peaks. My first HPLC was a Spectra Physics SP8000 (nice: ternary gradient, column oven, and roughly twenty 12" circuit boards making up the data system). We had one of these HP integrators connected to a GC as well. Both printed ‘integration marks’ on the chromatogram – no baseline. Theoretically it was possible to change the settings and look at new marks, change again, and get stuck in something like:
10 REM some stupid BASIC code without a BREAK
20 GOTO 10
30 END
Anew = Aold × Hnew / Hold
. Voilà!I think the first systems where you could actually see the baseline on screen were LDC/Milton Roy’s CCM and the Altex Scientific 324 introduced in the early 1980s. Microcassettes! Proprietary BASIC!! Moving around the chromatogram by means of arrow-keys (the mouse wasn’t invented yet…)!!!
BTW, this was also the age of the infamous WISP 712 (Waters Intelligent Sample Processor) – which was renamed by my friends at the Sandoz Research Institute to WUSP (Waters Unintelligent Sample Processor) because it was notorious for trying to slam the needle through the bottom of sample vials or into the back of the analyst’s hand changing the 48 (!) sample tray.
—
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
Helmut Schütz
The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Dif-tor heh smusma 🖖🏼 Довге життя Україна!
Helmut Schütz
The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes
Complete thread:
- Manual integration sagark 2010-07-29 02:26 [Bioanalytics]
- Manual integration Helmut 2010-07-29 15:30
- Manual integration ElMaestro 2010-07-29 21:07
- HistoryHelmut 2010-07-30 01:30
- LSB - evil, terrible and annoying ElMaestro 2010-07-30 23:46
- Manual integration ElMaestro 2010-07-29 21:07
- Bad integration: Example Helmut 2010-07-30 20:24
- Bad integration: Example sagark 2010-07-31 12:57
- Bad integration: Example Helmut 2010-08-01 02:09
- Better integration? Example Helmut 2010-08-12 20:11
- Better integration? Example ElMaestro 2010-08-12 23:14
- Better algorithms / more awareness of analysts Helmut 2010-08-13 13:43
- Better integration? Example ElMaestro 2010-08-12 23:14
- Better integration? Example Helmut 2010-08-12 20:11
- Bad integration: Example Helmut 2010-08-01 02:09
- Bad integration: Example sagark 2010-07-31 12:57
- Manual integration keshav khude 2010-08-13 09:11
- Manual integration Helmut 2010-07-29 15:30