1 1 years of experience is a blank in her mind. 100% disabled, paraplegia, near blindness, slow brain, 100 Jin weight, loss of basic language ability, this is her real situation.
What happened to Zhu Ling? On April 10, a 92-year-old student from the Department of Mechanics of Peking University, Bei Zhicheng, used the laboratory network to translate Zhu Ling's disease into English with another student and posted it online for emergency help.
Within a week, doctors and experts from all over the world responded to as many as 1500 letters. Bei Zhicheng and others also specially designed a letter reading software to classify these letters by keywords. The statistical results show that 30% of the respondents believe that the patient is thallium poisoning. He began to let Peking University students translate emails. On April 18, he rushed to the Union Medical College Hospital with a medical certificate, hoping that the doctor would accept it. I waited in front of the ICU ward all day, and no one wanted to see it except a few young doctors.
The hospital has repeatedly informed Zhu Ling's family that the possibility of thallium poisoning has been ruled out.
China's budding Internet, if not the arrogance of medical "authority", almost achieved an epic story to save lives.
On April 28th, Zhu Ling's parents managed to collect the skin, nails, long hair, blood, urine, cerebrospinal fluid and other samples from the nylon sweatshirt (1994) worn by Zhu Ling when he first became ill in February, and sent them to the Zhenyang Chen laboratory of Beijing Institute of Occupational Disease Prevention and Control. Zhenyang Chen confirmed that Zhu Ling was poisoned by thallium, and the thallium in his body exceeded the lethal dose. Zhenyang Chen believes that such a large dose is either suicide or homicide, and the murderer must have been poisoned twice.
That night, Zhu Ling's parents immediately reported the case to Tsinghua University Security Office. The next morning, Zhu Ling's parents asked Tsinghua University to immediately protect the scene and seal up Zhu Ling's things at school for further testing.
On May 7th, Beijing Public Security Bureau 14 and Tsinghua University Police Station were ordered to put on record. During this period, Zhu Ling's dormitory was mysteriously stolen, but no money was lost. Zhu Ling's cup fell under the bed of a female classmate. Since then, the forensic scene has been destroyed.
1May 1995 and1May 1997, two thallium salt poisoning incidents occurred in Tsinghua University and Peking University respectively. In addition to the suspected man-made crime, thallium salt is not managed according to drama drugs, which is an important reason.
What the hell is thallium?
Thallium, atomic number 8 1, atomic weight 204.3833, the chemical symbol comes from the bright green of its spectral line, which means "twig". 186 1 year, crookes, a British chemist and physicist, found this element in the waste residue spectrum of a sulfuric acid plant and named it. The following year, crookes and Lamy made thallium by electrolysis almost at the same time. The content of thallium in the earth's crust is about three thousandths, and the low concentration is distributed in feldspar, mica and sulfide minerals of iron and copper, and there are few independent thallium minerals.
Thallium is a white, heavy and soft metal with a melting point of 303.5°C, a boiling point of1457 C and a density of 1 1.85 g/cm? .
Thallium can react with oxygen and halogen elements in the air at room temperature. It can react with sulfur, selenium, tellurium and phosphorus at high temperature; Thallium is insoluble in water and reacts slowly with hydrochloric acid, but it dissolves rapidly in nitric acid and dilute sulfuric acid to form soluble salts. Thallium halide and silver halide have similar photosensitivity, and can not only see photodegradation.
The low melting point of thallium and gold can be used to bond the glass shell of electron tube; Thallium activated sodium iodide crystal is used in photomultiplier tube; Thallium compounds can also be used as catalysts for organic synthesis; Thallium and thallium compounds are toxic to living things and human bodies.
thallotoxicosis
Thallium is more toxic than lead and mercury. Thallium compounds are widely used in industrial production. In addition, raw materials for firecrackers (fireworks) often contain high thallium, and its by-product sodium chloride (non-edible salt) is also polluted. When people eat this non-edible salt (often sold by criminals), it will cause poisoning.
Poisoning is characterized by numbness or pain of lower limbs, low back pain, alopecia, headache, mental anxiety, muscle pain, tremors of hands and feet, and unstable walking.
Precautions: Sodium chloride (non-edible salt), a by-product of firecrackers, is often red. Be careful not to buy or eat red salt.