Decades of hard work ruined by an accident? A medical school in Sweden wanted to cry without tears. According to Agence France-Presse, a large number of valuable research samples from Sweden's Karolinska Institutet were destroyed during last Christmas due to a malfunction of the freezer tank.
According to the report, the accident occurred between December 22 and 23 last year, when the liquid nitrogen** of 16 cryogenic storage tanks where the research samples were stored was interrupted. Although the tanks could still operate for 4 days without replenishment of liquid nitrogen, the outage lasted 5 days. Karolinska Institutet said that an internal investigation had not found any signs of vandalism, but that they had chosen to call the police for support.
According to reports, the value of the destroyed samples was about 500 million Swedish kronor (10 Swedish kronor is about 7.).8 RMB). Salberg, a professor at Karolinska Institutet, said the medical school had not yet estimated the damage, but millions of dollars, to say the least, and said: "Leukemia researchers are the worst, and those samples took them 30 years of hard work." However, Saarberg said the good news is that the samples are used for research purposes and will not affect the care of any current patients. (Li Yi).
500 million SEK, equivalent to 3400 million yuan, although Sweden has a high salary, with an average monthly salary of 20,000 or 30,000 yuan, it is impossible to take more than 300 million yuan.
Liquid nitrogen ** was interrupted for five days and no one found out, and it was speculated that the Swedish version of the grain depot was burned.
The frozen samples are all used for research, and the data of a large number of ** reports of academic research are not corrected, the bonus salary that should be taken is also taken, and the scientific research funds that should be received are also spent.
Liquid nitrogen, it sounds quite rare, but the actual ** is not high, and the industrial bulk purchase is less than 1,000 yuan a ton. For freezing, I bought many jars to store.
Such valuable frozen samples are either patrolled daily by hand or monitored in real time by sensors. And there should be redundant circuits, even if there is a power outage, there will be enough time to issue an alarm. A set of backup power supply (UPS), you can buy it for a few hundred dollars, plus temperature sensors, pressure sensors, liquid level sensors, etc., as well as SMS sending modules, wifi connection modules, a set of 3000 yuan is enough, and you can install it after nine years of compulsory education.
This is the case, either the researcher is going to leave or retire, or the report has attracted attention, in short, it can't be made up and will be exposed, and the liquid nitrogen will not be available, which is similar to the burning of the ancient grain depot in China.