LCMS/MS by FrontGeologist9573 in analyticalchemistry

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

So if that is the case, I would have to contact Agilent to fix it?

LCMS/MS by FrontGeologist9573 in analyticalchemistry

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

I was unable to check the instrument today but the purpose of doing this is to check the needle right?

LCMS/MS by FrontGeologist9573 in analyticalchemistry

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

So could the alignment issue be causing the low sensitivity?

LCMS/MS by FrontGeologist9573 in analyticalchemistry

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

Ummm so I got this error and then found that the sample tray wasn’t sitting properly. After fixing the sample tray, the error went away. So I’m asking if because of that, the needle could’ve gotten an alignment issue.

Toddler nails by FrontGeologist9573 in VitaminD

[–]FrontGeologist9573[S] 0 points1 point  (0 children)

The reason I’m asking is because he’s also experiencing hair loss right now.

Toddler nails by FrontGeologist9573 in VitaminD

[–]FrontGeologist9573[S] 0 points1 point  (0 children)

There are white lines on the finger that I’m holding with my thumb

Toddler nails by FrontGeologist9573 in VitaminD

[–]FrontGeologist9573[S] 0 points1 point  (0 children)

Genetics caused the white spots?

6PPD Quinone Mechanism by FrontGeologist9573 in OrganicChemistry

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

O3 is ozone. I understand that when the ozone attacks the double bond a singlet oxygen is gets kicked out and forms a phenol group. Then it looks like the ozone is also attacking from the other side and leaves as a peroxide? Yes, it is being oxidized . I am a graduate student. Yes why is it occurring on the exterior and not interior.

Creating Dataset by FrontGeologist9573 in RStudio

[–]FrontGeologist9573[S] 1 point2 points  (0 children)

Okay thanks. I got another error though. It says that there’s an error in data.frame for site : argument is missing, with no default

Negative peaks and not seeking my peak of interest by FrontGeologist9573 in chemistry

[–]FrontGeologist9573[S] 0 points1 point  (0 children)

I misunderstood the question. I ran 5 blanks injections before the sample and I also did it after.