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sirljz:½ûÖ¹²»¾¼Ó¹¤Ö±½Óͨ¹ý¹¤¾ß·ÒëµÄ»ØÌû 2010-04-12 15:06
|
In recent years, industrial development, a variety of production and living waste water does not meet the national standard directly into the water. As the majority of residents drinking water has been contaminated. Basically, water quality testing in the field sampling, laboratory analysis phase, general laboratory analysis of complicated steps, a longer experimental period, it is difficult to meet production and market demand. The subject of this test, developed rapid detection of water tank to achieve the water quality field sampling and field measurement, fast measurement of water quality in a number of indicators, to grasp the dynamic changes of water environment, to prevent accidents, To provide rapid field measurement of new test methods. Through experiments and rapid determination of chloride in water. Application of Mohr and the preparation of silica gel adsorption principle of rapid detection of chloride pipe, through the method of selection, and single factor experiments to determine the best test tube silicone silver chromate test program. Under the optimum conditions, the detection limit of 5mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 108.9%. Compared with the GB no significant systematic error, RSD% <5.5%, 10min to complete the testing of samples. Through experiments and rapid determination of sulphate in water. By orthogonal test the best material ratio, and studied water samples were seized temperature, pH, iron ion and chloride ion had no significant impact on test results. The main experiment, the test tube of a minimum detection limit of 100 mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 106.6%. O-phenanthroline spectrophotometry of total iron in drinking water was improved by adding surfactants to improve the detection sensitivity PEG20000. And inspected on a single factor, combined with on-site rapid detection of the characteristics of rapid detection of total iron made from 5min to complete the sample test tube, the minimum detection limit of 0.1mg / L, recovery was 92.6% ~ 103.8%. After each experiment the choice of test items reagents, reagent ratio, production technology and other factors explored to determine the best solution. The detection of the test box project performance evaluation, detection limits were lower than or equal to GB5749-2006 "Drinking Water Standards" of the minimum standards, repeatability> 92%, standard deviation of 0.65% -4.4% Table coefficient of variation range from 0.1% to 5.7%, recoveries of 86.5% ~ 108.9%. Common ions in water interference test, test tube with a self-made water samples were randomly selected for testing, and with national standard method and compared its accuracy> 94%. |
3Â¥2010-04-11 10:05:30
fandewei
ľ³æ (СÓÐÃûÆø)
- ·ÒëEPI: 15
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 469.8
- É¢½ð: 60
- ºì»¨: 2
- Ìû×Ó: 191
- ÔÚÏß: 58.7Сʱ
- ³æºÅ: 857439
- ×¢²á: 2009-09-26
- ÐÔ±ð: GG
- רҵ: ·Ûĩұ½ðÓë·ÛÌ幤³Ì
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
sirljz(½ð±Ò+10):лл½»Á÷£¬Õâ¸öÈÏÕæ¿´ÁËһϸоõ·ÒëµÄ²»´í 2010-04-12 15:06
hibye(½ð±Ò+100, ·ÒëEPI+1):лл£¡ 2010-04-14 19:49
sirljz(½ð±Ò+10):лл½»Á÷£¬Õâ¸öÈÏÕæ¿´ÁËһϸоõ·ÒëµÄ²»´í 2010-04-12 15:06
hibye(½ð±Ò+100, ·ÒëEPI+1):лл£¡ 2010-04-14 19:49
|
in recent years,with the development of the industry, a variety of production and living waste water has been sent directly into the water without the permission of the national standard ,which causes that the majority of residents drinking water has been contaminated seriously.Basically,water quality testing is in the step of the field sampling and laboratory analysis,but because of the complicated laboratory analysis and long experimental period,it is difficult to meet production and market demand.The subject of this test supply a new melthod for the rapid measurement of the new site testing. the invention of the rapid detection of water tank makes it to Water quality field sampling and on-site determination,which functions as rapid measurement of a number of indicators of water quality, grasping the dynamic changes of water environment and preventing accidents,etc the way of the rapid determination of chloride in water is avaliable in this experiment. rapid detection of chloride pipe has been made up in the Application of Mohr and the preparation of silica gel adsorption principle,the best test tube silicone silver chromate test program has been determined through the method of selection, and single factor experiments.Under the optimum conditions,the detection limit is 5mg / L, coefficient of variation ranges from 2.1% to 6.3%, recoveries range from 82.5% ~ 108.9%. in comprison with GB,there is no significant systematic error, the percent of the RSD is less than 5.5%, it only takes 10min to complete the testing of samples. the way of the rapid determination of sulphate in water is avaliable in this experiment.the best material ratio has been determined by orthogonal test,the temperature has also been considered, the results have nothing with pH, iron ion and chloride.The detection limit is 100 mg/L,coefficient of variation ranges from 2.1% to 6.3%, recoveries range from 82.5% ~ 106.6%.the study of Phenanthroline spectrophotometry in testing the total iron in drinking water has been improved.also,the Sensitivity has been developed by adding Surfactant PEG20000.in consideration of the single factor,combining with on-site rapid detection of the characteristics of rapid detection,the total iron can be tested out in 5min,the detection limit is 0.1mg/L,the recovery is 92.6£¥~103.8£¥. the choice of test items reagents, reagent ratio, production technology and other factors has been exploreed in the test,in view of these factors,the best plan is determined.evaluating the detection of the test box project performance,compared with GB5749-2006 "drinking water health standards",the detection limit is much lower,Repeatability is greater than 92%, Standard deviation is 0.65% -4.4%,coefficient of variation is 0.1% to 5.7%,and the recovery is 86.5%¡«108.9%¡£testing the Interference of common ions in water and testing water samples using Self-made test tube,compared with GB methold,Accuracy is larger than 94%. |

2Â¥2010-04-10 17:12:24
ÔÂÁÁµÄÃÎ
½ð³æ (ÕýʽдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 1275.6
- ºì»¨: 9
- Ìû×Ó: 667
- ÔÚÏß: 63.7Сʱ
- ³æºÅ: 987953
- ×¢²á: 2010-04-02
- ÐÔ±ð: GG
- רҵ: ½á¹¹¹¤³Ì
sirljz:½ûÖ¹²»¾¼Ó¹¤Ö±½Óͨ¹ý¹¤¾ß·ÒëµÄ»ØÌû 2010-04-12 15:07
|
In recent years, industrial development, a variety of production and living waste water does not meet the national standard directly into the water. As the majority of residents drinking water has been contaminated. Basically, water quality testing in the field sampling, laboratory analysis phase, general laboratory analysis of complicated steps, a longer experimental period, it is difficult to meet production and market demand. The subject of this test, developed rapid detection of water tank to achieve the water quality field sampling and field measurement, fast measurement of water quality in a number of indicators, to grasp the dynamic changes of water environment, to prevent accidents, To provide rapid field measurement of new test methods. Through experiments and rapid determination of chloride in water. Application of Mohr and the preparation of silica gel adsorption principle of rapid detection of chloride pipe, through the method of selection, and single factor experiments to determine the best test tube silicone silver chromate test program. Under the optimum conditions, the detection limit of 5mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 108.9%. Compared with the GB no significant systematic error, RSD% <5.5%, 10min to complete the testing of samples. Through experiments and rapid determination of sulphate in water. By orthogonal test the best material ratio, and studied water samples were seized temperature, pH, iron ion and chloride ion had no significant impact on test results. The main experiment, the test tube of a minimum detection limit of 100 mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% to 106 in recent years, industrial development, a variety of production and domestic sewage does not meet the national emission standards directly into the water. As the majority of residents drinking water has been contaminated. Basically, water quality testing in the field sampling, laboratory analysis phase, general laboratory analysis of complicated steps, a longer experimental period, it is difficult to meet production and market demand. The subject of this test, developed rapid detection of water tank to achieve the water quality field sampling and field measurement, fast measurement of water quality in a number of indicators, to grasp the dynamic changes of water environment, to prevent accidents, for the rapid measurement of the new site testing means. Through experiments and rapid determination of chloride in water. Application of Mohr and the preparation of silica gel adsorption principle of rapid detection of chloride pipe, through the method of selection, and single factor experiments to determine the best test tube silicone silver chromate test program. Under the optimum conditions, the detection limit of 5mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 108.9%. Compared with the GB no significant systematic error, RSD% <5.5%, 10min to complete the testing of samples. Through experiments and rapid determination of sulphate in water. By orthogonal test the best material ratio, and studied water samples were seized temperature, pH, iron ion and chloride ion had no significant impact on test results. The main experiment, the test tube of a minimum detection limit of 100 mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 106.6%. O-phenanthroline spectrophotometry of total iron in drinking water was improved by adding surfactants to improve the detection sensitivity PEG20000. And inspected on a single factor, combined with on-site rapid detection of the characteristics of rapid detection of total iron made from 5min to complete the sample test tube, the minimum detection limit of 0.1mg / L, recovery was 92.6% ~ 103.8%. After each experiment the choice of test items reagents, reagent ratio, production technology and other factors explored to determine the best solution. The detection of the test box project performance evaluation, detection limits were lower than or equal to GB5749-2006 "Drinking Water Standards" of the minimum standards, repeatability> 92%, standard deviation of 0.65% -4.4% Table coefficient of variation range from 0.1% to 5.7%, recoveries of 86.5% ~ 108.9%. Common ions in water interference test, test tube with a self-made water samples were randomly selected for testing, and with national standard method and compared its accuracy> 94%. .6%. O-phenanthroline spectrophotometry of total iron in drinking water was improved by adding surfactants to improve the detection sensitivity PEG20000. And inspected on a single factor, combined with on-site rapid detection of the characteristics of rapid detection of total iron made from 5min to complete the sample test tube, the minimum detection limit of 0.1mg / L, recovery was 92.6% ~ 103.8%. After each experiment the choice of test items reagents, reagent ratio, production technology and other factors explored to determine the best solution. The detection of the test box project performance evaluation, detection limits were lower than or equal to GB5749-2006 "Drinking Water Standards" of the minimum standards, repeatability> 92%, standard deviation of 0.65% -4.4% Table coefficient of variation range from 0.1% to 5.7%, recoveries of 86.5% ~ 108.9%. Common ions in water interference test, test tube with a self-made water samples were randomly selected for testing, and with national standard method and compared its accuracy> 94%. |

4Â¥2010-04-11 10:35:47
Ī·ÇÊÇÎÒ
ľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 4 (Ó×¶ùÔ°)
- ½ð±Ò: 2323.1
- É¢½ð: 2086
- ºì»¨: 9
- Ìû×Ó: 1388
- ÔÚÏß: 367.7Сʱ
- ³æºÅ: 823085
- ×¢²á: 2009-08-06
- רҵ: ÐźÅÀíÂÛÓëÐźŴ¦Àí
sirljz:½ûÖ¹²»¾¼Ó¹¤Ö±½Óͨ¹ý¹¤¾ß·ÒëµÄ»ØÌû 2010-04-12 15:07
|
In recent years, industrial development, a variety of production and living waste water does not meet the national standard directly into the water. As the majority of residents drinking water has been contaminated. Basically, water quality testing in the field sampling, laboratory analysis phase, general laboratory analysis of complicated steps, a longer experimental period, it is difficult to meet production and market demand. The subject of this test, developed rapid detection of water tank to achieve the water quality sampling and field-site determination of a number of indicators for measuring water quickly, to grasp the dynamic changes of water environment, to prevent accidents, for the rapid measurement of the new site testing means. Through experiments and rapid determination of chloride in water. Application of Mohr and the preparation of silica gel adsorption principle of rapid detection of chloride pipe, through the method of selection, and single factor experiments to determine the best test tube silicone silver chromate test program. Under the optimum conditions, the detection limit of 5mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 108.9%. Compared with the GB no significant systematic error, RSD% <5.5%, 10min to complete the testing of samples. Through experiments and rapid determination of sulphate in water. By orthogonal test the best material ratio, and studied water samples were seized temperature, pH, iron ion and chloride ion had no significant impact on test results. The main experiment, the test tube of a minimum detection limit of 100 mg / L, coefficient of variation range from 2.1% to 6.3%, recoveries of 82.5% ~ 106.6%. O-phenanthroline spectrophotometry of total iron in drinking water was improved by adding surfactants to improve the detection sensitivity PEG20000. And inspected on a single factor, combined with on-site rapid detection of the characteristics of rapid detection of total iron made from 5min to complete the sample test tube, the minimum detection limit of 0.1mg / L, recovery was 92.6% ~ 103.8%. After each experiment the choice of test items reagents, reagent ratio, production technology and other factors explored to determine the best solution. Each test case the test items, performance evaluation, detection limits were lower than, or equal to GB5749-2006 "drinking water health standards" in the minimum standards, repeatability> 92%, standard deviation 0.65% -4.4% Table coefficient of variation range from 0.1% to 5.7%, recoveries of 86.5% ~ 108.9%. Interference of common ions in water test, test tube with a self-collected water samples were detected with national standard method and compared its accuracy> 94%. |
5Â¥2010-04-12 10:27:38














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