Same! And meanwhile, I'm here struggling to understand this concept haha

As a college graduate student, I thought the same thing.

Like most of science it came step-wise. First scientists discovered electron beams in gas discharge tubes and then realized that the electrons came from atoms/ molecules which had developed a positive charge. JJ Thomson devised the mass spectroscope to study these charged atoms/ molecules and found they had different trajectories through electric or magnetic fields - discriminated by their mass/ charge ratio. This was 100 years ago and gave the first evidence for isotopes (20-Ne and 22-Ne). Over a century technology has improved but the principles are the same - ions separated by their mass.

And a “simple” prokaryotic cell is infinitely more complex than this. Nature is insane

exactly

zanks

Salvage 😅😂

I think it depends on the quadrupole. It is limited by the amount of changes of m/z a second. If you are analyzing too many compounds, the right m/z is not often set enough. Many ions won't be stabilized and therefore not reaching the detector

7500 is an old instrument..

UPW

Wow 2 anos e ainda nada -.-

for determination of mercury in meat and rice check out Milestones DMA 80 instrument

I believe food samples are often digested in a heated mixture of acids, and the final matrix is something like 2% HNO3 6% HCl after diltution. Although, I've mostly seen Mercury analyzed with atomic absorbance instead of mass spec. I'm sure either works fine though.

It's used to test cannabis products for heavy metals contamination before it's sold to you at the dispensary! Among other uses.

Did you have a stroke?

Yes

コメントありがとうございます。アジレントのICP-MSは現在7900 ICP-MSという最新機種がございます。こちらのビデオは日本語化されておりますので、ぜひ、ご覧いただけたらと思います。www.chem-agilent.com/contents.php?id=1004848