29 May 08
Analytical Chemistry is madening, don't you agree!
I just spent many hours today trying to figure out why my Standard Verifications were turning out wrong over the past couple of days.
I have taken apart so many syringes to inspect plungers, gaskets and all! I have prepared GC vial after GC vial, checked the gases, even changed the gases! Checked solutions and procedures!
Only to find it was the @#$#%@ Standard Stock that was bad all along!
How many hours has this taken from my chess game over the past few days? Too many!
ðŸ˜
29 May 08
Originally posted by mlpriorIs the format of your work a solo mission or do you have colleagues?
Analytical Chemistry is madening, don't you agree!
I just spent many hours today trying to figure out why my Standard Verifications were turning out wrong over the past couple of days.
I have taken apart so many syringes to inspect plungers, gaskets and all! I have prepared GC vial after GC vial, checked the gases, even changed the gases! Checked s ...[text shortened]... g!
How many hours has this taken from my chess game over the past few days? Too many!
ðŸ˜
29 May 08
Originally posted by Grampy BobbyI have one colleague, though she is on vacation at the moment.
Is the format of your work a solo mission or do you have colleagues?
I did consult with her but she didn't know the answer either.
Trial and error I suppose.
So many hours that I could have been playing chess!
😞
29 May 08
Originally posted by mlpriorWell, look on the bright side. Chess does provide measures of psychic
I have one colleague, though she is on vacation at the moment.
I did consult with her but she didn't know the answer either.
Trial and error I suppose.
So many hours that I could have been playing chess!
😞
income but during this interlude you were paid hard cash not to play.
Knock 'em dead tomorrow and take care. Time for bed... 😴
29 May 08
Originally posted by mlpriorPretend like I'm about 10 years old, and translate this into something I might just be able to understand, please! Because I'm really at a complete loss as to what in the heck you're talking about.
Analytical Chemistry is madening, don't you agree!
I just spent many hours today trying to figure out why my Standard Verifications were turning out wrong over the past couple of days.
I have taken apart so many syringes to inspect plungers, gaskets and all! I have prepared GC vial after GC vial, checked the gases, even changed the gases! Checked s ...[text shortened]... g!
How many hours has this taken from my chess game over the past few days? Too many!
ðŸ˜
30 May 08
Originally posted by leisurelyslothOK
Pretend like I'm about 10 years old, and translate this into something I might just be able to understand, please! Because I'm really at a complete loss as to what in the heck you're talking about.
When running a quantitative analysis using gas chromatography you need to run standards along with the samples.
The standards are made up of the same chemical or analyte you are detecting but from a different source (a chemical supplier).
The standards are also made up in the approximate concentration (ppm in this case) of your expected ppm for the analyte and you know this concentration because you made it.
You run the standard along with the samples as a check to make sure you are getting the correct numbers.
If the standard numbers come out to be off then something is wrong with the process and you can not guarantee the numbers to the customer.
There could be several things wrong, the extraction solution, the chromatography gases, the chromatography column, the syringe, the stock solution, glassware could be contaminated, etc...
It's pretty simple, just sounds complicated.
Maybe i should take it to the "Science" forum.
😉
30 May 08
Originally posted by mlpriorI think I've got it now. So the problem was that your standards were sub-standard? What standard do you test the standards against?
OK
When running a quantitative analysis using gas chromatography you need to run standards along with the samples.
The standards are made up of the same chemical or analyte you are detecting but from a different source (a chemical supplier).
The standards are also made up in the approximate concentration (ppm in this case) of your expected ppm for t ...[text shortened]... pretty simple, just sounds complicated.
Maybe i should take it to the "Science" forum.
😉
30 May 08
Originally posted by mlpriorI've never been so turned on. 😳
Analytical Chemistry is madening, don't you agree!
I just spent many hours today trying to figure out why my Standard Verifications were turning out wrong over the past couple of days.
I have taken apart so many syringes to inspect plungers, gaskets and all! I have prepared GC vial after GC vial, checked the gases, even changed the gases! Checked s ...[text shortened]... g!
How many hours has this taken from my chess game over the past few days? Too many!
ðŸ˜
30 May 08
Originally posted by leisurelyslothThe Verification Standard is a set ppm because you have weighed it and dilluted it.
I think I've got it now. So the problem was that your standards were sub-standard? What standard do you test the standards against?
The Verification Standard is measured in relation to the Internal Standard but that is an entirely different story.
Aren't there any Chemists here?
🙄
30 May 08
Originally posted by mlpriorUmmmmmm.... I'm kind of a chemist... I think.... No.... I just want attention.... 😳
The Verification Standard is a set ppm because you have weighed it and dilluted it.
The Verification Standard is measured in relation to the Internal Standard but that is an entirely different story.
Aren't there any Chemists here?
🙄