Charge-state distribution here is unremarkable, which is itself informative: a shifted envelope is one of the earlier signs of aggregation or of a conformational population.
charge_envelope
Charge-state distribution as a folding and conformation clue.
Section 1
Contribution
Both submits records and annotates other people's.
Records submitted
16
n=16
Annotations
150
n=150
Median purity submitted
99.25%
n=16
Suppliers covered
12
n=16
Section 2
Records submitted
A submitter chose to buy this material and to pay for this assay. That choice is the selection mechanism behind the whole index and it is not random.
Section 3
Annotations
Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.
Base peak lands where the charge-state arithmetic says it should for a species of this mass. That agreement is a check on the deconvolution rather than on the material, and it passes.
Mass, retention and impurity profile all agree on this record. Three independent constraints pointing the same way is the strongest identity evidence the index publishes.
The charge-state envelope on this record is worth reading before the ppm figure. A deconvolution over a truncated envelope produces exactly this kind of error and is invisible in the summary.
Identity confirmed, purity 99.00 %, mass balance closed. This record is complete against the index definition of complete and there is nothing outstanding on it.
Every named impurity on this record has a mass defect consistent with its structural assignment. That is the check that distinguishes an assignment from a guess.
The envelope on this record spans enough charge states to support a deconvolution. Where it does not, the algorithm extrapolates and the reported mass acquires an error with no physical cause at all.
Identity confirmed, purity 98.85 %, mass balance closed. This record is complete against the index definition of complete and there is nothing outstanding on it.
Identity confirmed, purity 99.51 %, mass balance closed. This record is complete against the index definition of complete and there is nothing outstanding on it.
Identity confirmed and purity at 99.50 %. The two answer different questions — what it is, and how much else is in it — and a record carrying both is the version worth citing.
Identity confirmed, purity 99.48 %, mass balance closed. This record is complete against the index definition of complete and there is nothing outstanding on it.
Identity confirmed and purity at 99.90 %. The two answer different questions — what it is, and how much else is in it — and a record carrying both is the version worth citing.
Showing 12 distinct comments of 150 annotations by this handle.