Figure 4.
Influence of pH for the up taking of Cr(VI) using TIHP, (time 30 min., 20 mL sample, 0.1 g TIHP, T = 25 ± 1 °C and [Cr(VI)] = 250 mg/L).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.