Chuyển đến phần nội dung
Luyện Nghe Tiếng Anh Chất
Tiếng Anh Chuyên Ngành
Listening Quiz: Thuyết Trình Tổng Hợp Chất Chuẩn Tham Chiếu Cho Nhóm Phân Tích – Advanced Level
Th6 24, 2025
—
bởi
Anna Phạm
trong
Tiếng Anh Hóa Học (English for Chemistry)
‹
1
2
3
4
5
›
1.
What is the main purpose of the conversation?
To schedule a training session for the analytical team
To discuss how a reference standard was synthesized and will be used for testing
To report a problem with contaminated raw materials
To compare different laboratory manuals
Explanation:
Daniel explains how he completed the reference standard synthesis, verified its purity, and will provide documentation so the team can use it for verification.
2.
What method did Daniel use to check the purity during synthesis?
Mass spectrometry
HPLC
Titration
Microscopy
Explanation:
Daniel says, ‘I used HPLC at different stages to check purity.’
3.
What was the final purity percentage of the reference standard?
95.5%
100%
99.5%
97.0%
Explanation:
Daniel states that ‘The final purity was 99.5%, which meets our standard.’
4.
What can be inferred about the final product?
It was suitable for use as a reference standard
It contained several major impurities
It failed to meet the required standard
It still needed more purification before use
Explanation:
Daniel says the final purity was 99.5%, it met the standard, and no significant impurities were detected, so it was suitable as a reference standard.
5.
What should the analytical team do next?
Rewrite the lab manual before testing begins
Wait until Daniel checks the purity one more time
Repeat the synthesis using different raw materials
Compare sample results against the standard after receiving it
Explanation:
Sarah asks how the standard will be used, and Daniel replies that the team will compare sample results against it and can start as soon as they receive it.
Previous
Check
Next
Finish
Reset
Luyện tập thêm về bài học này:
Listening Lesson
Vocabulary Flashcards and Quiz
←
Trước đó:
Listening Quiz: Thuyết Trình Kế Hoạch Sử Dụng Nước Hiệu Quả – Medium Level
Tiếp theo:
Listening Quiz: Giải Thích Chính Sách Du Lịch Thú Cưng Của Hãng – Advanced Level
→