Standards To Burn CONOSTAN standards are for your spectrometer. Burn them in emission or atomic absorption spectrometry or use then in X-ray fluorescence to obtain the highest quality standardiza tion. Where metals in oil are your analytical problem use CONOSTAN standards to help solve it. There are 29 elements as individual standards at 5000 ppm in light oil for use in atomic absorption analysis. Mercury and arsenic are available at 100 ppm in light oil. CONOSTAN blends of 12 or 20 metals in heavy oil are the valid reference standards for wear metal analysis. A 20 metal blend with calcium at5times the level of the other metals is also available.
CONOSTAN CONOSTAN DIVISION · Continental Oil Company P.O. Box 1267 · Ponca City, Oklahoma 74601
Figure 9. Absorption spectra of 2'- and 3'-hydroxyacetophenones and anions
Table I. Derived Displacing Values of Substituent Groups (δλ0 in nm) for Two Solvents Type I (donor)
Type II (acceptor)
H20
MeOH
OCOCH, CH3 F CI Br OH O© OCH3
26 29 24.5 29.3 31.5 36 55 37
26.5 29 25 29.5 32 38 59 38
NH 4 ® S02H S02CH3 S02NH2 AsO(OH)2 CN CONH2 CONHNH2
°^0>
37
37.5
CONHNH3®
NH2 NHNH2 NHCH3 NHC2H5 N(CH3)2 N(C 2 H S ) 2 NHCONH
50 40 57 58 61 63 45
54 42 59.5 61 62 64 47
C02h
Ν
0
56
58
Ν
ΝΗ
R
59
Ô
63
•α
66
R
co 2 © C02CH3 COCH, CHO N02 NO
H20
MeOH
25 33 38 38 38 44 46
25 32.5 37 37 38 43 46 44.5 49
50 44 50 63 69 90
47 42 48 59 63 81 92
