Table 2.
Determination of Cu (II) in tap water using N–CDs.
| Added (μM) | Found in Tap Water (μM) | Recovery (%) | RSD (n = 3, %) |
|---|---|---|---|
| 0 | ND * | — | — |
| 15 | 16 | 105.82 | 2.43 |
| 30 | 30.14 | 99.07 | 0.87 |
| 50 | 49 | 97.03 | 1.49 |
* ND: not detected.
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.