An attempt was made to determine which job events are perceived as significant sources of stress in police work. The Police Stress Inventory was developed based on the interviews with police staff and experts in police administration for this study. The questionnaire was administered to a random sample of 220 police personnel. The respondents rated the job situations as least stressful (0%) to most stressful (100%). They consider the organizational and social aspects of their job are more stressful especially round the clock duty, lack of time for family, political pressures from outside and inadequate facilities. Results indicate that stress is due more to organisational factors than to physical hazards on the job. Efforts should be made by police administration to take corrective measures such as changes within organization and improving training programs. Efforts should be made by police administration to take corrective measures such as changes within organization and improving training programs.
The most common colorimetric quantification method for triterpenoids utilizes vanillin in strongly acidic conditions to form a colored adduct with the analyte, and it has gained popularity because it is fast and easy to perform. Nevertheless, the detection range of this assay is limited and it is susceptible to side reactions, which cause an interference in the reading. Here, we quantify the rate of this interference in common solvents, and we present an alternative method to minimize the interference, which first incubates the analyte solution in perchloric acid at 60°C before the vanillin is added and finally quenched with acetic acid. We also successfully isolated the adduct that formed and confirmed that the color was due to vanillin polymerizing onto the analyte. The improved method had a correlation coefficient of 0.9959, as well as high accuracy and precision, which had a standard deviation of 0.072 mg/mL, and was not affected by minor changes in the conditions making it a robust method. Furthermore, our method had a limit of quantification of 2.37 mg/mL, which can analyze formulations with ease as well as a limit of detection of 0.782 mg/mL. Triterpenoids are quickly emerging as bioactive compounds, and as a result, our work improves upon current methods to quantify triterpenoids.
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