ISO 13779-3:2018
[Current]
Implants for surgery — Hydroxyapatite — Part 3: Chemical analysis and characterization of crystallinity ratio and phase purity
...Determination of the signal-to-noise ratio is performed:
for the Detection limit: establishing the minimum concentration at which the analyte can be reliably
detected...
...formula,
like an example,
S
N
mq =?
+ %fph , where m and q are known,
Calculate DL as: DL=
S
N
q
m
, where S/N=3 for TTCP, -TCP, -TCP and CaO...
...form at
the most, two phases:
- and/or -tricalcium phosphate and hydroxyapatite, if the Ca:P ratio is below 1,667;
hydroxyapatite and calcium oxide, if the Ca:P ratio is above 1,667...