Titanium (Ti) and titanium compounds

[Ti: an atomic absorption standard solution 1,000 ug Ti per ml (nominal) in 1 mol/l H2SO4] UN2796
Test organisms;
Rotifera: Lecane hamata (ref. ID; 6861, 7164)
Rotifera: Lecane luna (ref. ID; 6861), 7164
Rotifera: Lecane quadridentata (ref. ID; 6861, 7164)