Table 2 The comparison of proposed method and ICP-MS detection of Cu2+ (n=9)

From: Ultrasensitive detection of Cu2+ with the naked eye and application in immunoassays

Sample

Detected by ICP-MS (μ M)

Detected by this method (μ M)

RSD (%)

Tap water

1.35

1.52

3.8

River water

3.41

3.73

5.4

  1. Abbreviations: ICP-MS, inductively coupled plasma-mass spectrometry; RSD, relative standard deviation
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