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# Daily English Learning of Analytical Instrument #

Topic: High-Performance Liquid Chromatography (HPLC)-3

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This is oral English of analytical instrument organized by EWG1990 English group. Welcome to lesson 6. Today we will cover the third and final part of High-Performance Liquid Chromatography£¨HPLC£©.

Now let's begin the part 1£º

☞ Vocabularies:

1. ÏìӦʱ¼ä relative response
2. УÕýÒò×Ó correction factor
3. ÏàËÆÏàÈÜÔ­Ôò rule of similarity
4. ×îС¼ì²âŨ¶È minimum detectable concentration
5. Íâ±ê·¨ external standard method
6. ÔëÐÅ±È noise-signal ratio
7. ·å¿í peak width
8. ÎïÀí¶Û»¯·¨ physical deactivation
9. УÕýÇúÏß·¨ calibration curve method
10. Ìå»ýÅÅ×èÉ«Æ× size exclusion chromatography
11. Äڱ귨 internal standard method
12. ¶þ¼«¹ÜÕóÁмì²âÆ÷ diode-array detector£¬DAD
13. ±ê׼ƫ²î standard deviation

Now let's begin the part 2£º

☞ Sentences:

1. Äڱ귨ºÍÍâ±ê·¨¿ÉÓÃÓÚ¶ÔÆ¡¾ÆÖеIJ»»Ó·¢×é·Ö½øÐж¨Á¿¼ì²â·ÖÎö¡£
Quantitation analysis of involatile compositions in beer could be done by internal standard method or by external standard method.

2. ½¨Òé²ÉÓÃУÕýÇúÏß·¨²â¶¨HNIW´¿¶È¡£
It is prefer to use calibration curve method to analyze purity of HNIW.

3. ÄÇô£¬Èç¹ûÖØ¸´Ö´ÐжÈÁ¿¹ý³Ì£¬Æ½¾ùÖµºÍ±ê׼ƫ²î»áÓжà´ó±ä»¯£¿
Then how different would the mean and standard deviation be if the procedure were repeated?

4. ¶ÔÓÚÐźŴ¦ÀíÀ´Ëµ£¬ÆäÖÐÒ»ÖÖ·½·¨ÊǶÔÐźŵÄÂ˲¨£¬¼´ÔÚ½ÓÊÕµ½µÄÐźÅÖÐÌáÈ¡ÓÐÓõÄÐÅÏ¢£¬Ìá¸ßÐÅÔë±È¡£
To signal processing, one of the methods is signal-filter, that is, distilling useful information from the signal that received to enhance the signal-noise ratio.

5. ÎÄÖжÔÒÇÆ÷×°Öá¢É«Æ×Ìõ¼þ¡¢ÑùÆ·´¦Àí¡¢¸ÉÈÅÎïµÄÏû³ý¡¢×îС¼ì²âŨ¶È¡¢Öظ´ÐÔ¡¢·½·¨Ó¦ÓõȽøÐÐÁ˱¨µ¼¡£
Instrumental installation, column, conditions, sample disposal, interfering component elimination, minimum detectable concentration, repeatability and applications of the method were reported.

This is the end of the class, and I wish you a nice day!

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