Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Samples, list

Figure 7 shows voltage profiles, for the second cycle of most of the graphitic carbon samples listed in Table 1. The curves have been sequentially offset by 0.1 V for clarity. Most striking is a reduction of the maximum reversible capacity, or Q ,, (<2 =372-x ,3,), as P increases. [Pg.356]

Powder X-ray diffraction and SAXS were employed here to explore the microstructure of hard carbon samples with high capacities. Powder X-ray diffraction measurements were made on all the samples listed in Table 4. We concentrate here on sample BrlOOO, shown in Fig. 27. A weak and broad (002) Bragg peak (near 22°) is observed. Well formed (100) (at about 43.3°) and (110) (near 80°) peaks are also seen. The sample is predominantly made up of graphene sheets with a lateral extension of about 20-30A (referring to Table 2, applying the Scherrer equation to the (100) peaks). These layers are not stacked in a parallel fashion, and therefore, there must be small pores or voids between them. We used SAXS to probe these pores. [Pg.378]

Exhibits 2-5 and 2-6 are modified sample lists of programs and elements for an actual company (here called Xmple, Inc.) drawn from the files of Arthur D. Little. These are in addition to the PSM requirements shown in Exhibit 2-4. You should develop similar lists for your company. These can usually be obtained from PSM and ESH manuals or the specialist staff who support the programs and elements. Be careful to make sure you understand the scope of each program, as the titles can sometimes be a little misleading. For example, spill response may cover only measures to be taken to stop further spillage, while containment and clean-up are covered under emergency response. [Pg.24]

All application verification and soil samples must be individually labeled with unique sample identification (ID) and other identifying information such as study ID, test substance name, sample depth, replicate, subplot and date of collection, as appropriate. Proper study documentation requires that sample lists and labels be created prior to work commencing in the field. Water- and tear-resistant labels should be used since standard paper labels may become water-soaked and easily torn during sample handling. Sample lists should have the same information on them as the labels and are a convenient place to record plot randomization, initials of the individual who collected the sample, and date of collection. As such, the sample list is important in establishing chain of custody from the point of sample collection until its arrival at the laboratory. [Pg.867]

The physico-chemical characteristics of the sediment sample significantly influence the fate of agrochemicals in a paddy field and a waterway system. Therefore, the factors that influence adsorption, retention, and degradation of agrochemicals are very important. As a minimum the characteristics of the sediment sample listed below should be described ... [Pg.897]

Table 2 Results of the calculated effect of the low molecular weight fraction on the ultimate fibre strength for the three PpPTA polymer samples listed in Table 1. The constants used in the calculation are ec=240,g=2, t0=0.4 GPa and u0= 1.3 nm.The maximum ultimate strength for infinite long chains using these constants is 5 GPa... [Pg.74]

Figure 3 shows a photograph and a drawing of one of our mini-counters. The counters are of Davis design [14]. Counters of 0.70 cm3 volume were used for all the samples listed in... [Pg.324]

Although detector balancing takes only a few seconds on typical instruments, the need to do so should be assessed. The time and numbers of samples lost over time to balance a detector may be considerable. Perhaps only a detector balance between sample plates will do. This can be accomplished by so-called pre-run macros or scripts that can be executed between individual sample lists by many acquisition software packages. [Pg.109]

In Table VI the occurrence of each prism type is summed over all the samples listed in Tables III, IV and V for those prisms containing two, three, or four aluminum atoms. The two preferred structures containing three aluminum atoms and the twocontaining four aluminum atoms are marked by asterisks. [Pg.207]

Table I lists the comparative parameters for the various indochinite spectra. Two methods were used in preparing these samples. The first two samples listed were prepared by grinding the indochinite specimen and binding the powder with water glass. The other samples were sliced with a diamond saw. The two spectral lines are given with their position, width, height, and area. The quadrupole splitting and isomer shift are listed in the columns labeled QS and IS. (The isomer shift is really a combination of isomer shift and temperature-dependent shift, and the values are relative to iron in palladium.) The raw data points were fitted with a two-peak Lorentzian using an IBM 7094 least-squares fit. Table I lists the comparative parameters for the various indochinite spectra. Two methods were used in preparing these samples. The first two samples listed were prepared by grinding the indochinite specimen and binding the powder with water glass. The other samples were sliced with a diamond saw. The two spectral lines are given with their position, width, height, and area. The quadrupole splitting and isomer shift are listed in the columns labeled QS and IS. (The isomer shift is really a combination of isomer shift and temperature-dependent shift, and the values are relative to iron in palladium.) The raw data points were fitted with a two-peak Lorentzian using an IBM 7094 least-squares fit.
Another area that has seen significant attention by CDS manufacturers is the ability for today s systems to interface more easily with other business systems. In the past, TIMS was the predominant system that was linked to the CDS. Most of the interfacing was file based, and usually required that the CDS send out a result file that could be read and parsed by the LIMS. It was also possible for the LIMS to send a sample list or sequence to the CDS. Most laboratories, however, were more concerned about moving sample result information from CDS to LIMS. [Pg.601]

The Aroclor samples listed in Table I were modeled by principal components to Illustrate how the result from principal components calculations can be used in... [Pg.7]

The commercial crystal form produced after 1975 is the y-form. XRPD powder patterns collected on the various sorbitol samples listed in Table 1 are in agreement with the reported y-form [15], and are shown in Figure 3. The listing of peak positions, d-spacings, and relative intensities for this crystal form is given in Table IV. [Pg.472]

Identify All Training Programs/Personnel to be Trained Figure 8 provides a sample list of personnel who need to be trained and the training programs they need to work effectively and efficiently at a pharmaceutical manufacturing facility you will want to add to the list. [Pg.446]

NaA102, Al, (S04)3, Al (N03)3, A1C13 as Al source have been studied, respectively. When pH=10, microwave oven pressure =0.2Mpa, CTAC as a surfactant and Na2Si03 as Si source, the pore characteristic of the synthesis samples listed in table 4. The data in table 4 indicates... [Pg.197]

Copolyesterether elastomers have excellent resistance to flex fatigue. For example, in the Ross flex test (ASTM D1052), all of the samples listed in Table 13 resisted cut-growth over 300,000 cycles. [Pg.304]

In the 1990s, fullerene research continued apace. Hundreds of new papers appeared each quarter pertaining to the properties of Cm and its cousins, and the prospects for developing new materials based upon this new dimension of carbon chemistry. (A sampling list of additional reading is given al the end of this article.)... [Pg.287]

Figure 1. Map of Little Lost River Cave (10BT1), showing sampled locations. Numbers correspond to samples listed in Table 1. Map is based on that of Gruhn... Figure 1. Map of Little Lost River Cave (10BT1), showing sampled locations. Numbers correspond to samples listed in Table 1. Map is based on that of Gruhn...
Control of the HPLC pump, the autosampler, and the MS is ensured by Masslynx 3.5 software. After optimization of the measurement conditions, a list of process measurements is setup (sample list), and the desired HPLC and MS steps are called upon. After a measurement, the ESI source is automatically brought to room temperature (shut down). Using 96-microtiter plates, 576 samples can be processed per measurement. The chromatograms are integrated by the software packages Quanlynx and Openlynx and exported as an Excel table. A macro is used to calculate the absolute intensities and therefore the ee and the conversion. The E values in kinetic resolution are automatically calculated with the formula of Sih [12]. Data processing is done with the Openlynx Browser. The overall process occurs continuously and enables analysis of up to 10000 samples per day, provided that the 8-channel multiplexed sprayer system is used [20b]. It is also possible to use 384-well micro titer plates. Systematic optimization is required for each new compound. [Pg.121]

Control experiments were made to ascertain that the increase in dispersion stability in the presence of carbcxylated block copolymer was indeed caused by adsorbed block copolymer and was not a side effect of the treatment—e.g., the result of a breakdown of the titanium dioxide particles from severe agitation or the result of factors associated with the exposure of the samples to elevated temperatures. Titanium dioxide was heated and agitated in o-dichlorobenzene under the same conditions as the samples listed in Table I but without block copolymer. After the agitation stopped, all particles, including the fraction of very small par-... [Pg.396]

All the coated samples listed in the tables were heated in an oven for 2 hours at 115 °C to ensure the removal of all solvent. Drying at room temperature, however, was sufficient for many of the coatings to pass the cellophane tape test. The cellulose acetate butyrate blends with 1% of each of the four carboxylated polyesters in Table II, for instance, passed the adhesion test on steel after the coatings had dried at 23 °C for only 0.5 hour, and the blends with 1% of the polyesters having acid numbers of 39-126 passed the adhesion test on aluminum. [Pg.579]

The samples listed in Table 21 were analyzed. The following parameters were kept constant ... [Pg.266]

The rest of the pulp samples listed in Table I (8 to 13) were provided by Dr. C.-H. Tay of Abitibi-Price Inc., Mississauga, Ontario, Canada. These samples were in the form of handsheets and were stored in the dark in a freezer at -18°C until used. [Pg.32]


See other pages where Samples, list is mentioned: [Pg.212]    [Pg.485]    [Pg.490]    [Pg.73]    [Pg.325]    [Pg.485]    [Pg.490]    [Pg.624]    [Pg.1038]    [Pg.19]    [Pg.291]    [Pg.73]    [Pg.110]    [Pg.282]    [Pg.267]    [Pg.82]    [Pg.48]    [Pg.226]    [Pg.341]    [Pg.145]    [Pg.173]    [Pg.217]    [Pg.137]   
See also in sourсe #XX -- [ Pg.27 ]




SEARCH



A sample listings

Sample introduction systems listed

© 2024 chempedia.info