991 resultados para NH4
Resumo:
U15(58)(30h30,27),-,:,,pH(6.5),60%,72h;50%, (NH4)2SO4 8%,42%,4.9;Tween80
Resumo:
,,(NH4)2SO4,1.18~3.66;(NH4)2SO475~225kg.hm-211.0%~41.2%,,,
Resumo:
Thiosemicarbazone derivatives have been used as ion carriers for the preparation of PVC-matrix based mercury(II)-selective membrane sensors. The electrodes give near-Nernstian responses in the linear concentration range of 1.010-1-5.010-6 M with detection limits of the order of 10-6 M. The stable potentiometric signals are obtained within a short time period of 20-25s. The effect of different plasticizers has been studied and dioctylsebacate (DOS) found to give a better response in comparison to other plasticizers. Selectivity coefficient values (log KPotHg,M) have been evaluated using fixed interference method. Better selectivity for mercury(II) ions is observed over many of the monovalent (Na+, K+ and NH4+) and divalent ions (Mg2+, Ca2+, Zn2+, Pb2+, Ni2+, Co2+, etc.). The sensors have also been used as indicator electrodes in potentiometric titration of mercury(II) ions with EDTA and its determination in synthetic water samples.
Resumo:
,Astragalus adsurgensN()3,,,:2.18-3.52;pH;CNNP;(NH4)2SO475-225 kg/hm2CaSO41 500-4 500 kg/hm2,4.5%-20.2%17.4%-49.9%
Resumo:
25,NO3--N,8,,,,,NO3--NNO3--N(r=0.884,P<0.01),NO3--N0.472(P<0.05),,;NO3--N,;,—NH4+-NKClNH4+-N,,KCl,;NaHCO3-UV...
Resumo:
NH4+-N,Bremner,NH4+-N(P<0.01)NH4+-N(88.8%),,NH4+-N(81.0%),;,NH4+-N(91.0%),NH4+-N(85.5%)>(83.8%)>(83.6%),,NH4+-N(P<0.01),NH4+-N84.3%,NH4+-N86.6%85.9%NH4+-N(P=0.436 5>0.05)NH4+-N,,N...
Resumo:
,NH3.:NH3,11.64~34.01 kg N.hm-2,4.66%~11.66%;>>,2~4 d.NH3,NH3,(P<0.05),;NH3.NH4+pHNH3;180 kg N.hm-2,NH3.
Resumo:
2,0~100 cm,0~100 cm,;,0~20 cm,,,(80~100 cm);,90 kg/hm2+45 kg/hm2,0~20cmNO3--N,NO3--NNH4+-N,,0~100 cm,
Resumo:
,,,,,,,060cm9.2428.12g/kg,0.220.60g/kg,0.1716.08mg/kg,80.06168.39mg/kg;NO3-N,2m,180200cm249.61kg/hm2,NH4+NNH4+NNO3-N,NH4+N,NO3-NNO3-N,NO3-N,
Resumo:
10(SON)(Nmin)(NDNR),SONSON23.9mg·kg-1,28.8%2.4%(TSN),SON,217d,SON118.1mg·kg-1,TSN46.4%ND:SON,0.92(P<0.01)0.88(P<0.01)ND(KD),NDSONKD,(KR),,;SON...
Resumo:
(Zea mays)‘-22’,,:(1),,,;(NO3--N),(1/2 NO3--N+1/2 NH4+-N,NH4+-N),(2),;2,NH4+-N(3),,NO3--N;2,NH4+-N(4)(r=0.979**),(r=0.950**),;...
Resumo:
(TU,0.1%,0.3%,0.5%,1.0%,5.0%),,;0.1%,,0.3%1.0%,1.0%5.0%NH4+-N,NO3--N,NO3--N10,NH4+-NNO3--N710;NH4+-N,NO3--N
Resumo:
,(DCD)(PPD),,2TUTU1+DCDTU1+PPD,NH4+-NNH4+-NNO3--N,,,9.14%1~1.49%
Resumo:
EMZY-1(SRB)16S rDNA:;,,0.31.7(m);1060;pH5.012.0;NaCl10%;C;NH4+NO3-NEMZY-116S rDNAGarciella nitratireducens(99%),GenBankEU275367,SRB
Resumo:
, ,2 6.5h 66% ,2 35μmol/(m2· s)6.5h - 50 % , 5 1 0 0 μmol/(m2· s) : ;PS PS +PS ; NH4 Cl ADP+Pi Hill Hill ; 9- AA
