Plenty of discussions are happening on LabWrench all the time. We have many questions come in daily from users that are seeking advice from fellow users and lab professionals on LabWrench. Can you help any of these users find the answers they are looking for?
Balance unstable in environment Customer has two other hr-73 balances work just fine on medium filter setting.This balance won't calibrate due to instability even on high filter setting Is there a way to increase filtering maybe pot on board or resistor or service settings? This balance will calibrate when moved to a more stable environment.Any help would be appreciated. Help this member
Compressed air for Q800
They are using 55 PSI compressed air for the machine despite, the fact the operation info specifies 65 PSI. I have pointed this out and they are reluctant to change, even though I am told that they have the capability. So my questions relate to the consequences of the low input compressed pressure. What effects on the instrument? What effects on the data? Help this member
Sulfite and Sulfate
We measured sulfite in food samples on CD to detect. We run 3 types of standard, first was sulfite, second was sulfate and third was sulfite + sulfate and each standard was run at 5 and 10 ppm. But we just saw only significant peak. We guess that peak of sulfite stay on same peak of sulfate. So, does anyone have experience on sulfite measuring? can you give me any idea about that? I also read an artical which they measured sulfite on ED not CD and use disposal pt electrode on ph Ag/AgCl reference. But we dont have this pt electrode, and we try to test on CD. Help this member
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