问题 问答题 简答题

准确度的评价分析方法有哪些?

答案

参考答案:①标准物质分析:通过分析标准物质,由所得结果评价分析方法的准确度。

②回收率测定:通过在样品中加入一定量的标准物质,测加标回收率评价分析方法的准确度。

③不同方法的比较:用不同的分析方法对同一样品进行重复测定时,看所得的结果是否一致,或经统计检验表明其差异是否显著时来评价分析方法的准确度。

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     One morning all the employees reached the office as usual. And on the wallthey saw a big   1    on
which it was written:Yesterday, theperson who has been   2  your g.rowth in this companypassed  3   .
We invite you to join the funeral prepared in the  4   .
     In the beginning,they all got     5     for the death of oneof their colleagues.    6   after a while they
started getting  7    to know who was the man that limited the growth ofhis colleagues and the company
itself.
     The  8   in the gym was such that security agents (保安) were    9   to control the crowd within the
room. Themore people reached the coffin, the more the excitement  10 up. Everyone whispered to each
other, "  11  on earthis this guy?"
     One by one the excited employees got closer to the coffin,and when they  12   inside it, they   13   
becamespeechless. They stood nearby the coffin, shocked and in  14  ,as if someone had   15  the
deepest part of their soul.
     There was a   16  inside the coffin;everyone who lookedinside it could see himself. There was also a
sign next to themirror that   17  : there is only one person who is   18   toset limits to your growth: IT IS 
 19  !!! !! !  Your lifedoesn't change when everyone around you changes. Your lifechanges when YOU
change,when you go beyond your limitingbeliefs inside. Don't be afraid of    20   ;build yourself and
your reality. It's the way you face life itself that makes thedifference !
( )1. A. card        
( )2. A. encouraging
( )3. A. on          
( )4. A. office      
( )5. A. sad        
( )6. A. And        
( )7. A. ready      
( )8. A. surprise    
( )9. A. admitted    
( )10. A. heated    
( )11. A. Where      
( )12. A. walked    
( )13. A. suddenly  
( )14. A. sorrow    
( )15. A. stolen    
( )16. A. letter    
( )17. A. wrote      
( )18. A. sure      
( )19. A. YOU        
( )20. A. punishment
B. post      
B. helping    
B. by        
B. gym        
B. excited    
B. But        
B. pleased    
B. anger      
B. forced    
B. woke      
B. What      
B. looked    
B. gradually  
B. order      
B. touched    
B. book      
B. read      
B. eager      
B. ME        
B. praises    
C. sign      
C. building  
C. away      
C. way        
C. afraid    
C. Or        
C. curious    
C. excitement
C. forbidden  
C. turned    
C. How        
C. got        
C. merely    
C. silence    
C. attacked  
C. mirror    
C. showed    
C. afraid    
C. HE        
C. changes    
D. letter      
D. limiting    
D. down        
D. meeting room
D. calm        
D. So          
D. serious    
D. sadness    
D. ordered    
D. kept        
D. Who        
D. turned      
D. extremely  
D. person      
D. seen        
D. appeared    
D. reflected  
D. able        
D.ITSELF      
D. blame      
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