食品分析(實驗)學習測驗
Quiz
•
Chemistry
•
University
•
Practice Problem
•
Easy
廷易 簡
Used 3+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在 100 kg 豬肉中添加12 g 亞硝酸鈉(NaNO2),則其 NO2-的濃度為多少 ppm?
60
80
100
120
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
凱氏(Kjeldahl)定氮法中,加入濃硫酸並且加熱使試樣分解時亦加入硫酸銅,此硫酸銅加入之主要目的為:
當指示劑用
當催化劑用
當添加劑用
當清潔劑用
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者不是常使用於氣相層析儀的偵測器?
熱傳導偵測器 thermal conductivity detector
折射率偵測器 refractive index detector
焰式游離偵測器 flame ionization detector
電子捕獲偵測器 electron capture detector
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用索氏萃取器萃取測定食品中粗脂肪使用的溶劑為何?
甲醇
乙醇
乙醚
乙酸乙酯
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
方框內應為下列何物?
氯化鈉
油脂
纖維素
蛋白質
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
急性的食物中毒最可能的原因?
添加物
油脂氧化
微生物
致癌物
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者為體積單位?
奈米
毫升
微克
公斤
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