F E A T U R I N G DRUG SCREENING
STANDARDS
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ι ug metauOJttes under t t i i i program will οβ ο Irvred
-idition of the 35 NIDA standards we now offer over 115 drugs & drug metabolite standards and mixtures making Applied Science Laboratories, Inc., the largest JI ce for drugs and drug metabolite standards in the world.
Detailed information
is available free upon request.
Applied Science Laboratories Inc. P.O. Box 440, State College, Pennsylvania 16801
CIRCLE 2 O N
Phone 814 238-2406
READER SERVICE C A R D
Three new reasons why your department should
TAKE ANOTHER LOOK AT PLASMA ASHING 1. N e w E n d - o f - A s h i n g Detector. We've i n c o r p o r a t e d an optical f e e d b a c k m e c h a n i s m that uses spectral analysis to d e t e r m i n e if any ashing is g o i n g o n . I f t h e s a m p l e is e n t i r e l y a s h e d , or needs s t i r r i n g , y o u r IPC system will let y o u know.
2. N e w T e m p e r a t u r e C o n t r o l . Transferring t e c h n o l o g y w e d e v e l o p e d in m a i n t a i n i n g a critical t e m p e r a t u r e e n v e l o p e for s e m i c o n d u c t o r manufac t u r i n g , w e have built a sophisticated temperature probe into our ashing c h a m b e r for real-time c o n t r o l over t e m p e r a t u r e at the sample.
3. N e w Heat Lamps. Until now, t h e only b e n e f i t y o u d e r i v e d f r o m plasma ashing was its s p e e d at low t e m p e r a t u r e s . N o w y o u can enjoy p l a s m a s cleanliness, safety and i n e x p e n s i v e u n a t t e n d e d o p e r a t i o n and get rid of y o u r e x p e n s i v e and hazardous p e r c h l o r i c acid. These are CIRCLE 106 ON READER SERVICE CARD 78 A ·
ANALYTICAL CHEMISTRY, V O L . 4 9 , NO. 1, J A N U A R Y
1977
i m p o r t a n t advantages w h e n y o u n e e d speed and are ashing a lot of samples. N o w y o u can do high t e m p e r a t u r e ashing simply w i t h our efficient new built-in heat lamps.
So: Three g o o d new reasons. A n d t h e r e are many more that won't fit this space. Please let us tell y o u our c o m p l e t e story and show what o t h e r chemists and spectroscopists are d o i n g in the QC Laboratory with our ashers . . - A n a l y z i n g plastics, paints, foods, d r u g s and m o r e . Call or write Dick B e r s i n ; ask for IPC B u l l e t i n 4 8 0 2 .
International Plasma C o r p o r a t i o n , 311 59 San B e n i t o Street, Box 4 1 3 6 , H a y w a r d , CA 9 4 5 4 4 . (415) 4 8 9 - 3 0 3 0 .
