Up to now, many well-established analytical methods, such as
spectrometry (Abdel-Azeem, Bader, Kuss, & El-Shahat, 2013; Kass
& Ivaska, 2002; Shyla, Bhaskar, & Nagendrappa, 2012),atomic
absorption spectrometry (AAS)and inductively coupled plasma optical emission
spectrometry (ICP-OES)