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Table 3 FTIR vibration modes of calcined ark clam shell powder and references

From: The usability of ark clam shell (Anadara granosa) as calcium precursor to produce hydroxyapatite nanoparticle via wet chemical precipitate method in various sintering temperature

Assignments Vibrational frequencies (cm−1)
FTIR result Singh and Purohit (2011) Rujitanapanich et al. (2014) Chen et al. (2015)
v C–O 1456 1422 1416 874, 1418, 1462
v O–H 3480 3431 – –
v O–H 3742 – 3642 3567
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