Skip to main content

Table 4 Analytical recovery of rare-earth elements in synthetic mixtures [n = 3]

From: Analysis of iron-rich hydrochloric acid solutions for uranium, thorium, rare-earth elements and other heavy metals

Element

Wavelength (nm)

Element added (µg)

Element Recovered (µg)

Recovery (%)

Fe

259.940

1,000,000

80

 < 0.01

La

333.749

100

93.4

93.4

Ce

418.660

100

94.8

94.8

Pr

422.293

100

96.1

96.1

Nd

430.357

100

96.4

96.4

Sm

359.262

100

94.6

94.6

Eu

381.965

100

92.5

92.5

Gd

364.620

100

95.0

95.0

Tb

350.917

100

94.5

94.5

Dy

353.170

100

94.2

94.2

Ho

345.600

100

93.4

93.4

Er

349.910

100

92.8

92.8

Tm

346.221

100

94.5

94.5

Yb

328.937

100

94.4

94.4

Lu

261.542

100

94.5

94.5

Y

371.029

100

94.4

94.4