ประโยคภาษาจีน : 中文句子 |
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yòng 用 jiǔ shí suān 酒石酸 yǎn bì 掩蔽 xī 锡 hé 和 mù 钼 yòng 用 liú niào 硫脲 yǎn bì 掩蔽 tóng 铜 yǐ 以 zhí jiē 直接 dī dìng 滴定 niè 镍 |
After tin and molybdenum are screened with tartaric acid and copper is screened with thiourea, nickel is directly titrated with EDTA. |