Sự nghiên cứu về các hợp chất hữu cơ gọi là hóa hữu cơ. Rất nhiều hợp chất trong số các hợp chất hữu cơ, chẳng hạn như prôtêin, chất béo, và cacbohydrat (đường), là những chất có tầm quan trọng trong hóa sinh học. | 290 . Joergensen Ninhydrin rengnnt 2 g didhyBrid and g hydrindantindihydrate dns-solved sfotamsnoacid anadysssS in 75 n-Ldimetdylsu-taxide sitntso 25 mLdf 4MlithiumardtatsbnS-gr theg adg dddt orM S Sế t Ethhn o-Adi sirn S- t ure --nl v Standa-dsoSurisns tSntfVL4eucing prepare. id K2uu4 and dó-luted withon tha sadgg 0 l 000pM SamplePreparation Use soil gxtsact prspareg as gessiidgdin gact. . Procedure 1. Add o4 seandsrdroluOions ts2SO4 and gsSraclx OS -olarak d mL tf mierie pcidbuffar td20 mL tomteubor -0g7gnntr2angBsB0ksr 1990 . 2. Add 1 hod vf ménnyBrin ranging IgB -y mix thoro-aniy 2nd dose wish loosg ainmidumlids. 3. Hgat thg terttuggs for 75 miad4Ỉ A i O sbi s c ilứig waisr id-h ad-t prgcipirgpgformgd donnm chg2dditis n of thg sehdgntsthsn dittBldr7. 4. After he gh t i cl 4 soO tf 4he ethang--to-watermixruraimixtha o-dg tions -hoio-ianin and rgad thgabsordaosr ad 570 dm. Calcu lation 1. Calvuhdlpd df tBtsecteddinhyBrin-raacSávgN tNnin Nnin Wm rod S-B X Nx UK SW Lx DM s absordron of shg na-aglo B absordron of shg bl-k N atom id masp ofniirogsn n n 2 VK vskn c fmg O4 entrad ant2mB- sw total an-dudS of watee id -he sod g i i li oìL L milli molar onsordaotr cog2g2itdtpr ghtmg DM total mads ofdry eoii ramplg oi 14 QuantificatixnoaSoil 291 2. Calculatioc af microbial binhyasin-reaciCveN Bnin aan in extracted hrom tVb CmigaCaC sail - Nnm exractedarom tVb oon-famigaCaC sail 3. Calculaaioc af microbial biomass c Bioma sCai Bnin X asa for sotir with a pH H20 above ioergbbtvn 1996b Bioma sCai Bnin X asi for sotir with a pH H20 of or belcw Joxrgxb-vn 1996b Notes andPoints toWatch A reflox digeetéonix rrt eeauired Csveinhyisin -e. Th is mnkes iavery suitable forsltuations witi minimaSisboratoryaacil-ttar. In bo til biomarsCand Name ss urements tde Lrantienooming Csac tic biomass is deteemlxed following subisactian oXan aMpraaoiatc With biomars c ahis vaiue isoftex balf .