Serology Lab Report Example | Topics and Well Written Essays - 500 words

Serology - Lab Report Example The specificity of this test lies on the fact that hemoglobin is only contained in blood. This change in pH is then detected by phenolphthalein, and the solution turns into pink quickly, or leuchomalachite green, which turns the solution into green (Houck and Siegel, 2010; Tobe et al., 2007). However, there are a few considerations in using these substrates. First, because phenolphthalein is a pH indicator, phenolphthalein reacts with any basic solution. It is thus important that the addition of LMG or PPT prior to the addition of hydrogen peroxide do not yield a color change. This ensures that any change in the solution results from the reaction of hemoglobin with hydrogen peroxide. Second, when the phenolphthalein is exposed too long in the solution, a spontaneous oxidation occurs causing the colorimetric reaction to occur (Houck and Siegel, 2010). The color change indicating presence of blood must thus be quick. Third, substances in fruits and vegetables may act like a peroxidase (Tobe et al., 2007). MATERIALS AND METHODS Sample FS-26-07 was tested for the presence of blood using leuchomalachite green (LMG) and phenolphthalein (PPT). Two set-ups were prepared. Each set-up consists of three spot plates each containing a strip of 1) positive control, 2) negative control, or 3) FS-26-07. The spot plates in the first set-up were added with two drops of LMG, while those of the second set-up were added with the same amount of PPT.

Relationship between Direct Marketing and Branding Essay

Relationship between Direct Marketing and Branding - Essay Example This paper illustrates that the primary objective of branding application is to develop and reinforce central messages of a company along with the product brands. It aims at a high quality of service, environment-friendly attributes, longevity, durability, and cost-saving objectives in order to enhance brand image and ensure sustainability. Branding and direct marketing are two distinct approaches to marketing. Direct marketing is intended to drive immediate customer responses; however, branding is a delayed response advertising technique. Direct marketing activity is the process through which various advertising media interact directly with consumers and obtain responses about a brand. The responses that are obtained with the help of direct marketing can be tracked, analyzed and stored in a database, which can be used further for development of long lasting customer relationships. With the help of direct marketing application, most of the companies try to record the trial, purchase or inquiry related issues of Customers. These issues are analyzed by the companies and significant changes are incorporated if required. The changes or developments in an existing product of a brand are made after studying the demand of the customer market thoroughly. Direct marketing is generally controlled with the help of electronic or digital marketing strategy in the contemporary era. Most of the advertisements are sent via e-mails and phone messaging systems. In some cases, companies post their advertisements along with survey rating ability in social networking websites, such as Facebook and Twitter. The enhancement of direct marketing strategy sampling can be clearly observed in the fast food business operations. The advertisements provided by the Fox’s Crinkle Crunch biscuits illustrate the importance of customer responses for brand promotions.