急~~化学方面英文文献

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think about what you had for breakfast today. the packaging on any processed food you ate, including cereal, milk,bread and yogurt, has a label that provides you with nutrition information so you can make healthy diet choice. this imformation comes from chemical analysis.

suppose you ate a boiled egg and a banana instead of the cereal and milk. there is no label with nutrition information there, but analytical chemists have rested a sample of eggs and bananas for residues of harmful chemicals so you can be confident that your breakfast is safe to eat.

your toothpaste, too, will have a label that says something like 'active ingredient 0.7% w/w sodium monofluorophosphate'. an analytical chemist would have checked that this amount of active ingredient was correct.

analytical chemists are employed in a range of industries, from food manufacturing