bought a second-hand HPLC. worst best decision of my life. AMA
Quick one. Canada here. HPLC works very differently where I live than in the threads that dominate the front page, and I keep seeing people confidently given advice that simply does not apply outside the US. Specifics: the route I used took 2 weeks and cost roughly what I expected. The admin was worse than the cost.…
Detection wavelength? method development and that changes at different wavelengths.
The Janoshik result being close to my own HPLC is the signal, not the absolute number. Both are right.
area% and mass% are not the same and this whole post conflates them
Detection wavelength?
Yes, exactly this, and it is the bit that took me 38 weeks to accept.
Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.
a round-robin on baseline integration would be genuinely useful