Concentration of commonly used

TABLE 11.47 Concentrations of Commonly Used Acids and Bases... 

The lower explosive concentrations of commonly used gases are presented in Table 4.17 [21]. 

Inerting begins with an initial purge of the vessel with inert gas to bring the oxygen concentration down to safe concentrations. A commonly used control point is 4% below the LOC, that is, 6% oxygen if the LOC is 10%. 

The data show that the extent of the hydrolysis of starch by the amylase of Aspergillus oryzae depends within wide limits upon the concentration of amylase used. Like those for pancreatic amylase already discussed (Figure 2), these hydrolysis curves show a change from a rapid to a slow phase of the reaction and tend to flatten at higher values as the concentration of amylase is increased. Again, with different concentrations of the amylase of Aspergillus oryzae there is no evidence of a common limit such as is observed with different concentrations of beta amylase (Figure 1). 

Blood and urine mercury concentrations are commonly used as biomarkers of mercury exposure. ... 

Linearity. Neat standard solutions are prepared to cover the nominal concentration of the sample. ICH Q2B [1] proposes an acceptable range of 20%. A range of 25 to 125% of nominal concentration is commonly used for the linearity determination. This range allows quantitation at the early dissolution time point. 

Apart from public health impacts, residual antimicrobials in animal products can bring about technoeconomic losses in the food processing industry. It has long been known that the presence of some antimicrobial compounds in milk can dramatically affect the production of fermented dairy products such as yogurt, cheese, buttermilk and sour cream (72, 73). As shown in Table 10.2, even minute concentrations of antibiotics in milk can cause inhibition of the growth of commonly used dairy starter cultures (74). 

The relatively rapid hydrolysis of glycofuranosides by acids was the first property used for differentiating these compounds from the more normally encountered, more stable glycopyranosides. In Tables VIII and IX are assembled data from the literature the rate constants are given in sec.-1 and common logarithms.118 The conditions of acid concentration and temperature varied in the data reported,48 48 the conditions were the same, and so the rate constants can be compared. Heidt and Purves188 used a term, fc = fc/[H], to eliminate differences in the concentration of acid used. 

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