Scientific report: "Adaptation methods for detecting microbial residues of antibacterial substances in shrimp in Vietnam" potx

... 175,00 Quantity of standard/disk (ng) Width of inhibition zone around the disk (mm) Danofloxacine Oxolinic acid Difloxacine Ciprofloxacine Norfloxacine Enrofloxacine Flumequine Sulfadiazine Sulfadimethoxine Sulfamethoxazole ... except for norfloxacine (28  1 mm and CV = 5 %). Among them, enrofloxacine induced the est inhibition zone (36  1 mm) with a CV = 3%. For danofloxacine,...

Ngày tải lên: 06/08/2014, 18:22

... achieved within 28 days, is generally taken to indicate ready degradability. Taking into account that in this system there will also be incorporation of carbon into the formation of biomass (growth), ... size of the polymer chain and the insoluble nature of many of the polymers. Extracellular enzymes are respon- sible for this step, acting either endo (random cleavage on the...

Ngày tải lên: 25/10/2013, 08:20

... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method. A reference file of material data handling sheets ... Average recovery found for measurements of samples containing a concentration of C, in µg/L. 12.6 Identify the parameters in the sample by comparing the retention time of the...

Ngày tải lên: 14/02/2014, 03:20

... standards at a minimum of three concentration levels for each parameter of interest as described in Section 7.3.1. 7.4.2 Prepare a spiking solution containing each of the internal standards using the procedures ... capable of being heated to 85°C within 3.0 minutes after transfer of the sample to the purging device and being held at 85 ±2°C during the purge cycle. The entire wat...

Ngày tải lên: 14/02/2014, 03:20

... mutual information, and lexicography. In Proceedings of the 27th Annual Meeting of the As- sociation for Computational Linguistics, Vancou- ver, Canada, 76–83. Ted Dunning. 1993. Accurate methods for ... -best lists for a single (and often small) value of are only snapshots and likely to be misleading. For instance, considering the set of AdjN base data with we might arriv...

Ngày tải lên: 20/02/2014, 18:20

... found of , in µg/L. C = True value for the concentration, in µg/L. = Average recovery found for measurements of samples containing a concentration of C, in µg/L. Estimates based upon the performance ... beginning in Section 10. 8.2.4 Calculate the average recovery ( ) in µg/L, and the standard deviation of the recovery (s) in µg/L, for each parameter of interest u...

Ngày tải lên: 05/03/2014, 21:20

... a minimum of three aliquots of calibration standards, containing each of the phenols of interest that are derivatized according to Section 7.5. 12.10 Inject 2-5 µL of the column fractions into ... may be used in place of the K–D concentrator if the requirements of Section 8.2 are met. 10.7 Pour the combined extract through a solvent-rinsed drying column containing about 10 cm...

Ngày tải lên: 05/03/2014, 21:20

... found for measurements of samples containing a concentration of C, in µg/L. APPENDIX A TO PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER METHOD 605—BENZIDINES 1. ... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method. A reference file of ma...

Ngày tải lên: 14/03/2014, 20:20

... recovery found for measurements of samples containing a concentration of C, in µg/L. Equation 2 where: A = Amount of material injected (ng). V = Volume of extract injected (µL). i V = Volume of total ... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method. A reference file of mat...

Ngày tải lên: 14/03/2014, 20:20

... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method. A reference file of material data handling sheets ... samples containing a concentration of C, in µg/L. 6. Reagents 6.1 Reagent water—Reagent water is defined as a water in which an interferent is not observed at the MDL of the param...

Ngày tải lên: 22/03/2014, 14:20