The optimum condition and effect of foreign ions were discussed and the results indicated that hemoglobin concentration demonstrated good linear relationship in the range of 1.0×10-9~1.0×10-7 mol/L,and the apparent molar absorptivity ε553 was 1.7×106 L·mol-1·cm-1 with a detection limit of 2.76×10-10 mol/L.
The largest absorption wavelengthof complex compound is 540nm,and molar absorption coefficient is 2.48×10~4 L·mol~(-1)· cm~(-1)Aluminium content from 0 to 35 μg/25ml obeys Beer's law.
The complex exhibits maxi- mum absorption at 595 nm,with a apparent molar absorption coefficient of 2.5×10~4. The composition of the complex has been established as Fe:R=1:5.Beer's law is obeyed in the range of 0~20 μg of iron in 25 ml of solution.
The maximum absorption wavelength is 600nm. Beer's law is obeyed when the Co~ 2+ amount is 0 to 0.2mg/L. The apparent molar absorption coefficient is 2.254×105 L/(mol·cm) .
The maximum absorption wavelength is 520 nm. The apparent molar absorption coefficient is 1.87×10~4 (L·mol~(-1)·cm~(-1).) Beer′s law is obeyed in the range of 0~2.4 μg/mL for Fe~(3+).
It shows that the maximum absorbance wavelength of the compound is at 580nm,its molar absorption coefficient ε_(580) is 1.84×10~3 L·mol~(-1)·cm~(-1) under the condition that the dosage of color agent is 4mL,the temperature is 35℃ and the time is 60min.
Because of the high molar extinction coefficient and quantum yield, the cyanine dyes as a new fluorescence probe have gotten important application in the research fields of life science, such as microarray-based analysis, DNA sequence, fluorescence immunoassay, flow cytometery, clinical diagnose and so on.
This method can give the simple determination of properties of Cu-NBBB complex solution at pH 9.5, which involved the complex ratio, real molar absorptivity, and stability constant (K).
Such a method can give the simple determination of complex characteristic factors such as the complex ratio, real molar absorptivity (ε) and step or cumulative stability constant (K).
The molar absorptivity of the hydrolyzate is several times higher than that of N-2-pyridyl(maleic acid monoamide) in various media, which can be used for the sensitive determination of the substance.
The region of the predominant accumulation of an uncharged complex of 1 : 2 composition is shifted to lower pH values (11.0 and 7.5, respectively), whereas the molar absorption coefficient of the complex increases by approximately 1.7 times.
The radical anion -OOC-C·OO2- is characterized by an optical absorption band that has a maximum at 270 nm and a molar absorption coefficient of (2400 ± 200) l mol-1 cm-1.
We found a reaction of palladium(II) with picramine-epsilon to give a colored complex with an absorption maximum at 556 nm and a molar absorption coefficient of (2.01 ± 0.02) × 104.
A series for the degree of easiness in detecting complexes on the catalyst surface (the series of decreasing the molar absorption coefficient) is proposed.
A bathochromic shift (10 nm), enhanced fastness in light and sublimation (1-2 grade) and larger molar extinction coefficient (increase 104 L.mol-1.cm-1) are apparent with these new compounds.
The wavelength at maximum absorption, molar extinction coefficient, and the tendency to the photodegradation were strongly dependent on the electron donating ability of the coupling component.
The UV-vis spectrum exhibited characteristics of a typical clostridial ferredoxin spectrum with a molar extinction coefficient ε385 of ~30000 M-1 cm-1 and an A385/A280 ratio of 0.76.