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Chapter III CHN Analysis, FT IR …..
parameters of - histidine doped KDP crystals and also found less value of
axial ratios for doped crystals than the pure KDP crystal. Kushwaha et al [40]
have recently reported the powder XRD pattern of L- threonine doped KDP
crystals and observed a systematic variation in the intensity of diffraction
peaks with varying L-threonine concentration. They did not report any extra
peak due to doping of L-threonine. Also, recently Parikh et al [18] have
reported that the single phase nature of L-alanine doped KDP crystals.
Altogether, L-arginine and L-histidine doped KDP crystals [41] and L-arginine
doped KDP crystals [42] were reported. They reported the single phase
nature and slight change in the unit cell parameters on doping.
3.5.2 Powder XRD of Pure and Amino Acids Doped KDP Crystals
In the present study, the powdered samples were analyzed by
employing Cu K radiation of X-ray. The data were analyzed by using
computer software powder X. The standard unit cell parameters of KDP were
given as reference and the unit cell parameters for each sample were
calculated by the software with assignment of different planes to Bragg
reflections. Figures (3.14 -3.16) represent the powder XRD patterns of pure
and the different amount of various amino acids doped KDP crystals and unit
cell parameters of different samples are listed in table (3.5).
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