第七章单元测试
- Which of the following statement about ion-selective electrodes is NOT true? （ ）
- Which one is not the advantage of standard curve method? （ ）
- Which of the following statements about standard addition method are correct? （ ）
- Which procedures can obtain a standard curve? （ ）
- The potential has linear relationship with the concentration of F before adding TISAB. （ ）
A:<span style="color:inherit; font-family: "PingFang SC"; font-size: 16px; caret-color:inherit;">No options available</span> B:They are sensitive to special ions. C:They are also called membrane electrodes. D:They are also called metal electrodes.
答案:They are also called metal electrodes.
A:<span style="color:inherit; font-family: "PingFang SC"; font-size: 16px; caret-color:inherit;">No options available</span> B:suitable for the measurements of complicate samples. C:simple operations. D:simple calculations.
A:the concentration of standard solution is high. B:the added volume of standard solution is small. C:the added volume of standard solution is large. D:the concentration of standard solution is low
A:plot an E-pF curve B:prepare standard solutions. C:prepare sample solutions. D:measure the potential of standard solutions. E:measure the potential of sample solutions.
A:对 B:错
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