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2 , there are some luck: gloves, do not wear, quickly finished; record, wait for me to remember after the completion, but the experiment is easy to forget.
3. If you do not do proper labor protection, you will operate rashly, causing personal injury or other harm.
4. There is no plan or organization in the operation of the test, which leads to half or even failure.
5. Some samplers take the sample and take it for granted as before. It is easy to make mistakes without doing simple analysis before the test.
6. When some analysts store data, they don't look at the storage path, which makes the analysis data fly all the time. When you find it, you can have difficulty!
7. Do not keep your own toxic and hazardous substances , and put them everywhere.
8 , do the experiment can not be done neat, do where to spread where, use up things do not return to home; use of experimental equipment, equipment is not good to clean, mistakes have been wrong.
9 , the experimental preparation work (including the preparation of reagents, instruments, literature review, determination of experimental methods, etc.) is not good, do a half-day effort.
10 , the experimental record can not be written while writing, or even write, or there is no special record book, easy to lose important information.
11. Sometimes, if there is no such phenomenon in the scope of the experiment, it is thought that this phenomenon will not occur, and the scope of the experimental conditions will not be expanded, and the conclusion will be reached in a hurry.
12 , for many experiments without standards to rely on, sometimes comment on their own subjective assumptions, the experiment does not persist to the end of the end of the experiment, or worry about what happened without completing the experiment, resulting in some important information was missed. Therefore, we must have patience in doing experiments. We must persist in doing the end and cannot quit halfway.
13 , attention is not concentrated. Sometimes, the addition of reagents is not added, or the wrong amount is added, or it is considered subjectively, but it is not. They are all caused by inattention. This brings a lot of error to the experimental results.
14. Volatile substances are not covered, causing a change in concentration, and the reagents and containers around them are also contaminated.
15. The instrument has not been cleaned for a long time after use, resulting in residue.
16. The used instruments, instruments, and reagents are not returned, causing others to waste time searching.
17 , love the pipette, the water inside out, if the pipette is acid or alkali, how to get to other people's body?
18 , discarded toxic waste liquid directly into the sewer.
19. The unused column is placed in the column oven, and the column is not damaged due to misuse.
20 , the preservation of the sample does not pay attention to its physical and chemical properties, improper conditions cause accidents.
21 , do not cherish laboratory equipment and equipment, do not save pharmaceutical reagents, think that very cheap things, do not know the cost of saving labor .
22 , poor health awareness , do not pay attention to the wear of the laboratory, and eat in the laboratory .
23 , the reagents are not timely and detailed bottlenecks , just make a simple mark on the bottle, but for a long time , I also forgot what those reagents are , so the bottle of reagents is scrapped.
24 , the overalls are dirty and do not remember to change, causing pollution.
25 , HPLC use, do not operate according to the regulations, do not wash the column, affecting the instrument, column, analysis.
26 , one of the colorimetric experiments did not wash the colorimetric tube, resulting in the next time the material was stuck on the colorimetric tube is not easy to clean. For example, if the ammonia nitrogen is measured, a yellow substance will adhere to the colorimetric tube after the experiment is not washed. In the second laboratory, when high-purity water or demineralized water is produced, unattended water causes the flooding of Jinshan.
27 , the laboratory is not clean and hygienic, in fact, a lot of dust, experimental desktop, instrument surface or even dead corners, do not pay attention to timely cleaning every day, accumulated over time, may affect the normal operation of the instrument and it will be troublesome to clean up once.
28 , the instrument used does not have status identification: " Running " , " Stop " , " Fault " should be clearly marked on the equipment to avoid uninformed personnel touching the running instrument to bring unnecessary Injury, or damage to the instrument.
29 , some protective equipment is not placed in the appropriate place, should be requested, so that when doing the experiment, they are all lazy, do not remember to wear protective equipment, long-term, may bring chronic diseases to the body.
30. Failure to record the maintenance of equipment and equipment in a timely and detailed manner. When the instrument fails, there is no way to accurately trace and make preventive maintenance plans for the instrument.
31. When using the equipment, when the equipment has not finished entering normal operation, the person will go away and do other experiments, which will result in the equipment being abnormal and cannot be corrected in time, resulting in loss.
32. Do not pay attention to the hazards of chemical substances to themselves, have a weak sense of safety, and eat in the laboratory.
33. Chat with colleagues while doing the experiment. Especially in the case of constant volume or titration, attention must be concentrated, and accidentally passed.
34 , the work attitude is not rigorous, the familiar operation is not careful and attention , otherwise, once the accident ( personal safety and experimental data quality ), we are victimized .
35. The preparation solution does not indicate the date of preparation on the label. It is not known to be prepared on that day for a long time, and many solutions are valid for a period of time.
36 , bad habits of GC and GCMS
a  The sample bottle is contaminated, the wash is not clean enough, and the result is of course a mixed peak.
b  The needle washing solution of the autosampler is not diligent, so that it is easy to damage the needle, and the second is that it has a bad influence on the result.
c GC hydrogen generator always forget to check the liquid level, easy to burn the pump
d injection pad and liner replacement is not diligent, one is easy to cause air leakage, and the second is contaminated sample
e  Sample processing is not good, concentration is too large, burning ion source
37, immediately capped reagent runs out, because not immediately but also with the pipette into the vial.
38. Due to the blurred vision , put the head into the fume hood to see the scale on the pipette .
39 , the worst habit is to work for work, do not think about not summing up, do a day of monk hit a day, mixed chaos!
40. Use the electronic balance immediately after opening, without waiting for its preheating to stabilize.
41, work time, no matter what the hands are soiled white lab coat to rub on
42 , convenient and trouble-free, long-term standard solution is not used for calibration.
43. After the pipette is used up, the maximum scale will not be adjusted back, and the spring will not be pressed for a long time, which will affect the accuracy.
44. When the balance is used up, it is not cleaned immediately, especially some corrosive things, which are not cleaned up immediately and seriously damage the balance.
45 , long hair fluttering in the laboratory! In the lab skirt fluttering, shorts, short sleeves! Do not wear protective tools such as gloves when handling chemical reagents! Do not pay attention to labor protection.
46 , in the process of working in the process: especially in the middle of the timing of the phone call, and then drip, which is easy to cause titration error, mineral oxidation in the middle.
47 , wearing work clothes to go around, it is also a bad habit, because the work clothes are coated with reagents.
48 , the atomic absorption of gas when leaving, is also a bad habit, do not check the atomic absorption of the waste pipe is not a gas seal is open gas is also dangerous, easy to cause an explosion.
49. Discarded reagent bottles are discarded without washing. In case of used acid bottles, it is dangerous to use them after they are picked up.
50. After the sample is finished, the hot plate will not be off work, and it will not be careful. It may be caused by the failure of the electrical appliance.
51 , bring breakfast, snacks to the laboratory to eat, so easy to eat poisoning.
52. Neglect of work safety , Â Convenient for greed , Â For paralyzed drugs with low to moderate toxicity , Â Reluctant to wear gas masks and utensils ( because of fear of heat ) .
53. The desktop is stacked with debris . Â The environment is messy , Â Push each other.
54. When doing weight loss on drying, take out the weighing bottle from the dryer, place it on a plate through a long corridor to the balance chamber and let it cool in a desiccator for half an hour and weigh it.
55 , test records, no date, no name and test items, only experimental data, no units, no one can understand what it is, think it is some numbers.
56. After the microbiological test, the medium is discarded with household garbage and is not sterilized.
57 , balance room, open the door when weighing, do not lightly open the door.
58. Pour out the problematic solution without clarifying the cause.
59 , smoking at work, sloppy near work is a taboo.
60 , waste! Many people think that it is not their own, anyway, the company has money, why should we save money for the company? . .
61 , careless, perfunctory.
62. Sometimes the configured solution has passed the service life, but it will not be too lazy because it will not have much impact.
63. Blow the pipette with your mouth.
64. During the testing process, some materials are judged by experience.
65 , wear slippers in the laboratory, do not wear gloves and goggles when configuring the solution (unsafe), write the first note on the note or notebook, and then copy the original record.
66 , high-spirited , disdain to learn from people whose academic qualifications are not low.
67. The original data in the lab drawer is disorderly, and the wrong or invalid raw data is everywhere.
68. Some people do not have the habit of recording the experimental process in time, and it is easy to repeat the work of the same type of mistakes. In the record, it is particularly mentioned that some people only record the right ones, and the wrong ones are afraid of being discovered by the leaders. I think Doing the " failure records " is ten times more valuable than doing the right records. These records not only make you and your colleagues less mistakes, improve work efficiency, and even recover losses, such as instrument damage, caused by errors in analysis results. Lawsuits, etc.
69. Disassemble the instrument and related components.
Bad habits common in chemical analysis laboratories
1. Do not make serious records, which makes it difficult to find the root cause after the problem arises. It is not easy to solve the problem or even go in the wrong direction.