Table 1 LAQUA twin NO3−, K+and RQflex20 PO43− instrument profile
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Instruments name | LAQUA twin NO3− | LAQUA twin K+ | RQflex20 PO43− |
Measuring principles | Ion electrode | Ion electrode | Reflected light |
Volume of samples required | 0.3–2.0 mL | 0.3–2.0 mL | 0.3–2.0 mL |
Scope of measurement | 2–9900 mg L−1 | 2–9900 mg L−1 | 5–120 mg L−1 |
