问题
判断题
离子色谱法测定水中氟化物、氯化物中，当水负峰干扰F-和C1-的测定时，可用100ml水样中加入1m1淋洗液贮备液的办法来消除水负峰的干扰。
答案
参考答案：对
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离子色谱法测定水中氟化物、氯化物中，当水负峰干扰F-和C1-的测定时，可用100ml水样中加入1m1淋洗液贮备液的办法来消除水负峰的干扰。
参考答案：对
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am away? 2. — ___ I have a walk with you, Mum? — No, you mustn't. 3. All the students _____ obey the school rules. 4. We _____ help others when they are in trouble. 5. He _____ be tired. He has just begun to work. 6. — ______ he use your bike? — Certainly. Here is the key. |