The presence of such elements as carbon, sulfur, oxygen, and nitrogen, even in small amounts, is particularly harmful; and thus sheet materials used in electrical equipment have a total impurity content of less than 0.4 percent.
Because, once I'd broken this fictional law and discovered that the Fiction Police weren't going to come and take me away for it, I took the next step into total impurity and began mixing the real and the fake unsystematically and with impunity.
Our detailed studies of the distribution of metal impurity clusters in multicrystalline Si have demonstrated that cells with the same total impurity content can have widely different minority carrier diffusion lengths based on the distribution of the metals, i.e., whether they are dispersed throughout the material or concentrated in a few, large clusters.
Rivastigmine tartrate contains not more than (NMT) 0.5% water and total impurity NMT 0.5% (Pharmaceutical Dosage Forms, General Chapters, 2017).
The total carbon content, the total impurity amount and the detected impurity elements are listed in Table 1.
The final achieved microstructure depends mainly on the carbon content and is less affected by the total impurity content.
Analysis of azithromycin nanoparticles shows that the individual related substances are <0.1 % and its total impurities are <0.3%% (BP 2010).
Bonaldi et al. [[11]] prepared high-purity UDCA, starting from cholic acid by forming the tris-trimethylsilyl derivative acid thereof, reducing the acid by the Wolff-Kishner method into UDCA, and the total impurities were less than 1.3%.
Acceptance criteria's for this analysis is as follows: impurity B must be <2.0 %; impurities A, C, E, F, G, H, I, L, M, N, O, P must be <0.5 %; sum of impurities D and J must be <0.5 %; any other impurities for each impurity must be <0.2 % and total impurities must be <3.0 %.
Moreover, obtained results indicate the impurity B is <1.1 %; impurities A, C, E, F, G, H, I, L, M, N, O, P <0.2 %; sum of impurities D and J are <0.3 %; any other impurities for each impurity are <0.2 % and total impurities are <1.8%%.
Table 5 Stability test results of nano-azithromycin that are placed in a relevant tight container for 12 months in RU MED chamber at 30 °C and 65%% RH condition Impurity type Mean: impurity (% w/w) RSD Impurity B 1.1 0.02 Impurities A, C, E, F, G, H, I, L, M, N, O, P 0.2 0.05 Sum of impurities D and J 0.3 0.10 Any other impurities 0.2 0.02 Total impurities 1.8 0.1.8
