The influence of different additives in blood collection tubes on the detection of alcohol content in blood samples
With the continuous improvement of people's living standards, the popularity of private cars has become more and more widespread, but traffic problems have emerged one after another, especially the phenomenon of drunk driving, which has always affected the social security. In order to ensure the fairness and justice of traffic law enforcement, forensic doctors began to explore the blood alcohol content of the parties involved in traffic accidents to determine whether the parties were drunk and driving. In the following, we will start from the aspects of ethanol detection methods, and explore and analyze the influence factors of different additives in blood collection tubes on the detection results of blood ethanol content in order to improve the accuracy of the detection results.
Desheng blood collection tube additive
Due to the different volume of liquid contained in different anticoagulation tubes, the dilution effect on the collected blood samples is different, resulting in different results of the ethanol content in the blood samples. In this experiment, a 2mL anticoagulant tube was used, and the amount of liquid (anticoagulant) in the sodium citrate (1:4) tube reached 400 μL, which is equivalent to 83.3% of the initial value of ethanol in the blood in the tube; sodium citrate ( 1:9) The amount of liquid (anticoagulant) in the tube reaches 180μL, which is equivalent to 91.7% of the initial value of the ethanol content in the blood in the tube; the amount of liquid (anticoagulant) in the EDTA-K2 tube is 20μL, which is equivalent to the ethanol content in the blood in the tube This is 99.0% of the initial value.
The experimental results show that the ethanol content in the sodium citrate (1:4) tube blood sample is about 80.7% of the EDTA-K2 tube, and the ethanol content in the sodium citrate (1:9) tube blood sample is about 91.1 that of the EDTA-K2 tube. %, the ratios of 84.2% and 92.7% of their blood content are basically close to each other. It can be seen that the dilution ratio directly affects the ethanol content in the blood sample. Therefore, when collecting blood samples from drivers suspected of driving under the influence of alcohol, EDTA-K2 additive blood collection tubes are the first choice.
Desheng is a professional manufacturer of blood collection tube additives. The main anticoagulants include EDTA-K2, EDTA-K3, heparin sodium, heparin lithium and other products. Welcome to consult and order.
Trihydroxymethylaminomethane is an important laboratory reagent widely used in fields such as molecular biology and biochemistry. To ensure its quality and purity, a series of tests are required. This article provides measurement methods for appearance, content, solubility, drying weight loss, pH value, melting point, and UV absorbance. These methods help to evaluate the quality and purity of trimethylaminomethane.