False coloring 57, Color plate

Fig. 15 Fluorescence imaging of citrate in a microtiter plate via the EuTc probe by rapid lifetime determination (in false colors). The concentration of EuTc is 50 pmol I. 1 throughout citrate concentrations (from left to right) are 0, 0.16, 0.4, 1.0, 1.6, 4.0, 10.0, 16.0, 20., 40.0, 60.0 and 80.0 pmol L-1...

Figure 4 The 384-channel parallel multidispensing of (a) 1 jiL and (b) 200 nL aliquots out of one aspiration into empty wells. The false color maps on the left show the DFM values of the dispensed aliquots over the plate. The color code for the DFM values is shown in a look up table (vertical bars on the right-hand side of the two plate maps). The histograms show the distribution of the DFM values around the mean (average) aliquot volume. The false color map, the DFM histogram, and the stated values for %Bias, %CV, and min/max %DFM in (a) and (b) refer to one representative plate from the 24 replica plates produced in a replication cycle for (a) 1 pL and (b) 200 nL aliquots, respectively. Roche uses the first 2 columns (2 X 16=32 wells) in each 384-well plate for standards and controls since columns 1 and 2 are not filled with compounds, they are not included in the false color maps...

Figure 11.23. Raman images of a pharmaceutical tablet reconstructed from 28 line images obtained with mechanical line scanning in a Dilor XY spectrometer. Both images are of the same area on the tablet, but image A is derived from an acetamidophenol band, while image B is from an excipient band. False color intensity scale is shown to the right of both images. Individual spectra are shown in Figure 11.7. (See color plates.)...

Figure 11.24. Alternative representations of the data in Rgure 11.23A. Image A is the raw 28 X 28 spatial grid, with white representing the most intense 858 cm band. Image B is an axonometric plot showing intensity as both a height above the x-y plane and as a false color scale, shown on the right. (See color plates.)...

If preferred, the MS image can be generated using fleximaging 2.0, for example, with a pixel raster of 400 X 400 pm and 200 laser shots per pixel. False colors were assigned to each mass of interest and their spatial distributions across the plate were displayed as a heat map. 

Aqueous solutions of metal nitrates were usually used as a precursor which can be easily oxidized at 500 C. Various cartridges for the printer were needed so that each metal-nitrate solutions had its own. Solutions of metal salts were deposited on a glass plate covered by a transparent conductive Sn02(F). The printing itself was controlled by a computer by which any shape of a frame, here a triangular pattern, could be selected. One example where 4 metals are involved, is shown in Figure 11.22. Panel A in this figure is a false color template, which only illustrates how the four metals Fe—Cs—Nd—Cu are distributed within the frame. 

Set up a hot water bath by half-filling a 250-mL beaker with distilled water and placing it on a hot plate so that the water becomes very hot before performing this test. Place five drops of the solution labeled P04 in a test tube and add two drops of concentrated HN03. Shake. Add five drops of ammonium molybdate solution, shake, and place in the hot water bath for 5 minutes. The formation of a yellow color or yellow precipitate is the positive test for phosphate. Bear in mind that contamination with residue from phosphate-containing soap may give a false-positive test for the unknowns. 

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