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base and Fenton-like reagent treated biomass for Cr(VI) sequestration from aqueous solutions

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A comparative study of acid, base and Fenton-like reagent treated biomass for Cr(VI) sequestration from aqueous solutions

A wide variety of biomass materials have been used for the removal of toxic chromium(VI) by biosorption. The current study investigated the efficacy of Macadamia nutshells treated with sodium hydroxide, nitric acid, and the Fenton-like reagent in the removal of Cr(VI).
The adsorbents were characterized by FTIR, SEM, TGA, and elemental analysis. Effects of functional parameters influencing the adsorption of Cr(VI), solution pH (pH 1-11), contact time (5-250 min), concentration of adsorbent (1-10 g/L), and adsorbate concentration (10-200 mg/L), were investigated.
The optimum conditions for biosorption were pH 1.4, adsorbent dose of 5 g/L, and 160 min of contact time. In all cases, the base-treated adsorbent displayed superior performance compared to others, with highest percent removal of 98%.
The adsorbate-adsorbent interactions were better explained by the Freundlich isotherm and the pseudo-first-order rate model. The Macadamia-based adsorbents is potentially useful for Cr(VI) removal from aqueous solutions.

Bovine Serum Albumin ? Heat Shock, Reagent Grade, pH 7.0
7917-5 each
EUR 144

Albumin Depletion Reagent for Plasma and Serum (20 ml)
P5W13 - Ask for price

EZ-DNA Reagents
BS8202 100preps
EUR 105.67

EZ-DNA Reagents
SK8201 100preps
EUR 112.2

Ecl Detection Reagents
RPN2105 EACH
EUR 724.8

Ecl Detection Reagents
RPN3004 EACH
EUR 582

Human Serum (CRP free)
90R-100 100 ml
EUR 1326
Description: C-reactive protein free normal human serum

Human Serum (FABP free)
90R-109 100 ml
EUR 1326
Description: FABP free normal human serum

REAGENTS HIGH RANGE AMMONIA
HI73325 PK25
EUR 49.2

High Range Ammonia Reagents
HI9373301 EACH
EUR 116.4

Human Serum (Myoglobin Free)
90R-110 100 ml
EUR 1326
Description: Myoglobin free normal human serum

CryoProtX Mix Reagents 1.5 mL
M-MDSR-61 1.5 ml ml
EUR 37
Description: CryoProtX Mix Reagents 1.5 mL

Alkphos Direct Labelling Reagents
RPN3680 EACH
EUR 813.6

Set of 10 Biolipidure Reagents
Biolipidure-set 10mLx10
EUR 1820.4
Description: Set of 10 Biolipidure Reagents, whose applications include Immunoassays, Western blots, Immunohistochemistry, Turbidimetric assays, Immunochromatography, and Bead based assays. Benefits include: No lot to lot variation, No animal derived materials, Non-specific adsorption suppression, Stabilization of immobilized antibody, Stabilization of enzyme-antibody conjugate, Enzyme-substrate reaction enhancement and aggregation reaction enhancement

Human Serum (Troponin I Free)
90R-106 100 ml
EUR 1417.2
Description: Troponion I free normal human serum

CryoProtX Mix Eco Reagents 1.5 mL
M-MDSR-61-ECO 1.5 ml ml
EUR 37
Description: CryoProtX Mix Eco Reagents 1.5 mL

500mL INSECTAGRO SF9 serum free
13-410-CV PK6
EUR 222

Serum Albumin, Lipid Free Protein
20-abx260049
  • EUR 927.60
  • EUR 343.20
  • EUR 627.60
  • 100 mg
  • 10 mg
  • 50 mg

Bovine Serum Albumin, protease free
GK4012-1KG 1 kg
EUR 1165.2

Bovine Serum Albumin, protease free
GK4012-500G 500 g
EUR 638.4

Bovine Serum Albumin, protease free
GK4012-1 1
EUR 2065.2

Bovine Serum Albumin, protease free
GK4012-500 500
EUR 1181.9

Bovine Serum Albumin, fatty acid free
GX5685-1KG 1 kg
EUR 1442.4

Bovine Serum Albumin, fatty acid free
GX5685-500G 500 g
EUR 792

Bovine Serum Albumin, fatty acid free
GX5685-1 1
EUR 1162.8

Bovine Serum Albumin, fatty acid free
GX5685-500 500
EUR 624.9

Normal Bovine Serum (Protease/IgG free)
88R-1012 10 ml
EUR 218.4
Description: Normal Bovine Serum which has been lipid extracted and dialyzed against 10 mM Sodium Phosphate, 0.15 M Sodium Chloride, pH 7.2

Human Apolipoprotein AI / B Free Serum Protein
abx060869-100ml 100 ml
EUR 594

Bradford(Coomassie) Protein Assay Plus Reagents
P7201-050 450ml
EUR 225.6

Corning Lymphocyte Serum Free Medium KBM551
88-551-CM 1L
EUR 201.6

Corning Lymphocyte Serum Free Medium KBM581
88-581-CM 1L
EUR 266.4

Fetal Bovine Serum, Premium Tetracyclin Free
F0500-050 500ml
EUR 1388.4

Serum Free Medium For Rat Neural Stem Cells
RAXNF-90011 100mL
EUR 289

Serum Free Medium For Mouse Neural Stem Cells
MUXNF-90011 100mL
EUR 289

Normal Dog Serum
88R-1028 10 ml
EUR 301.2
Description: Normal Dog Serum which has been lipid extracted and dialyzed against 10 mM Sodium Phosphate, 0.15 M Sodium Chloride, pH 7.2

Serum Free Complete Medium For Rat Fetal Neuron
RAXFN-90011 100mL
EUR 250

Dog Serum (Sterile)
20-abx800109
  • EUR 1545.60
  • EUR 3567.60
  • EUR 910.80
  • 100 ml
  • 500 ml
  • 50 ml

Dog Serum (Sterile)
abx800109-1L 1 L
EUR 5922

Bovine Serum Albumin ? Heat Shock, Protease Free, pH 7.0
7919-100 each
EUR 783.6

Bovine Serum Albumin ? Heat Shock, Protease Free, pH 7.0
7919-25 each
EUR 294

Bovine Serum Albumin ? Heat Shock, Protease Free, pH 7.0
7919-5 each
EUR 144

Serum Free Medium For Human Fetal Neural Stem Cells
HUXNF-90011 100mL
EUR 289

Free Chlorine Reagent set (25 tests)
HI-701-25 PK25
EUR 10.8

HSA Human Serum Albumin Recombinant Protein, Lipid Free
PROTP02768-3 Regular: 50mg
EUR 565.2
Description: HSA Human Recombinant lipid reduced produced in Plant is a non-glycosylated, polypeptide chain containing 585 amino acids and having a molecular mass of 67 kDa.

Xpro IP Cell Lysis Reagent,SDS Free
X3100-010 100ml
EUR 208.8

Xpro IP Cell Lysis Reagent,SDS Free
X3100-050 500ml
EUR 380.4

Bovine Serum Albumin ? Heat Shock, Fatty Acid Free, pH 7.0
7921-100 each
EUR 1358.4

Bovine Serum Albumin ? Heat Shock, Fatty Acid Free, pH 7.0
7921-25 each
EUR 535.2

Bovine Serum Albumin ? Heat Shock, Fatty Acid Free, pH 7.0
7921-5 each
EUR 210

EP Reagent Carbon Dioxide Free Water
1095502 1L
EUR 76.8

EP Reagent Carbon Dioxide Free Water
1095502TO 1L
EUR 124.03

Dog Serum albumin (ALB)
1-CSB-YP001561DO
  • EUR 814.80
  • EUR 402.00
  • EUR 2606.40
  • EUR 1261.20
  • EUR 1730.40
  • EUR 522.00
  • 100ug
  • 10ug
  • 1MG
  • 200ug
  • 500ug
  • 50ug
Description: Recombinant Dog Serum albumin(ALB) expressed in Yeast

Dog Serum albumin (ALB)
1-CSB-EP001561DO
  • EUR 733.20
  • EUR 370.80
  • EUR 2192.40
  • EUR 1126.80
  • EUR 1461.60
  • EUR 476.40
  • 100ug
  • 10ug
  • 1MG
  • 200ug
  • 500ug
  • 50ug
Description: Recombinant Dog Serum albumin(ALB) expressed in E.coli

Purified rat serum albumin protein (RSA, >99%, globulin free)
ALBR13-N-10 10 mg
EUR 343.2

Amersham ECL Western Blotting Detection Reagents for 4000cm2 membrane
RPN2106 EACH
EUR 374.4

Amersham ECL Western Blotting Detection Reagents for 1000cm2 membrane
RPN2109 EACH
EUR 188.4

Amersham ECL Western Blotting Detection Reagents for 6000cm2 membrane
RPN2134 1KIT
EUR 572.4

Amersham ECL Western Blotting Detection Reagents for 2000cm2 membrane
RPN2209 EACH
EUR 291.6

Dog Serum (Non-Sterile)
20-abx800108
  • EUR 1195.20
  • EUR 2715.60
  • EUR 744.00
  • 100 ml
  • 500 ml
  • 50 ml

Dog Serum (Non-Sterile)
abx800108-1L 1 L
EUR 4702.8

Beagle dog Serum Sterile
20-abx800094
  • EUR 2281.20
  • EUR 5438.40
  • EUR 1296.00
  • 100 ml
  • 500 ml
  • 50 ml

Beagle dog Serum Sterile
abx800094-1L 1 L
EUR 9096

Serum Free Medium (Type II) For Mouse Embryonic Stem Cells
MUXES-90061 200mL
EUR 839

Serum Free Medium (Type I) For Mouse Embryonic Stem Cells
MUXES-90062 200mL
EUR 839

Bovine Serum Albumin ? Heat Shock, Protease DNASE Free, pH 7.0
7920-100 each
EUR 1096.8

Bovine Serum Albumin ? Heat Shock, Protease DNASE Free, pH 7.0
7920-1000 each Ask for price

Bovine Serum Albumin ? Heat Shock, Protease DNASE Free, pH 7.0
7920-25 each
EUR 444

Bovine Serum Albumin ? Heat Shock, Protease DNASE Free, pH 7.0
7920-5 each
EUR 183.6

Dog Serum Iron ELISA kit
E08S0273-192T 192 tests
EUR 1524
Description: A competitive ELISA for quantitative measurement of Canine Serum Iron in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Dog Serum Iron ELISA kit
E08S0273-48 1 plate of 48 wells
EUR 624
Description: A competitive ELISA for quantitative measurement of Canine Serum Iron in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Dog Serum Iron ELISA kit
E08S0273-96 1 plate of 96 wells
EUR 822
Description: A competitive ELISA for quantitative measurement of Canine Serum Iron in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rabbit control serum (non-immunized, Disease free, SPF Rabbits)
NSPF-1 1 ml
EUR 343.2

Rabbit control serum (non-immunized, Disease free, SPF Rabbits)
NSPF-10 10 ml
EUR 781.2

Rabbit control serum (non-immunized, Disease free, SPF Rabbits)
NSPF-5 5 ml
EUR 634.8

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 7.0
7907-100 each
EUR 783.6

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 7.0
7907-25 each
EUR 294

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 7.0
7907-5 each
EUR 144

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 5.2
7908-100 each
EUR 783.6

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 5.2
7908-25 each
EUR 294

Bovine Serum Albumin ? Cohn Fraction V, Fatty Acid Free, pH ? 5.2
7908-5 each
EUR 144

Dog Serum Albumin ELISA kit
E08S0014-192T 192 tests
EUR 1524
Description: A competitive ELISA for quantitative measurement of Canine Serum Albumin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Dog Serum Albumin ELISA kit
E08S0014-48 1 plate of 48 wells
EUR 624
Description: A competitive ELISA for quantitative measurement of Canine Serum Albumin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Efficient Pd-Catalyzed Direct Coupling of Aryl Chlorides with Alkyllithium Reagents

Organolithium compounds are amongst the most important organometallic reagents and frequently used in difficult metallation reactions. However, their direct use in the formation of C-C bonds is less established.
Although remarkable advances in the coupling of aryl-lithium compounds have been achieved, Csp 2 -Csp 3 coupling reactions are very limited. Here, we report the first general protocol for the coupling or aryl chlorides with alkyllithium reagents.
Palladium catalysts based on y lide-substituted phos phines (YPhos) were found to be excellently suited for this transformation giving high selectivities at room temperature with a variety of aryl chlorides without the need for an additional transmetallation reagent.
This is demonstrated in gram-scale synthesis including building blocks for materials chemistry and pharmaceutical industry. Furthermore, the direct coupling of aryllithiums as well as Grignard reagents with aryl chlorides was also easily accomplished at room temperature.

Cross-linking cellular nucleic acids via a target-directing double click reagent

Bioorthogonal ligation reactions are powerful tools for characterizing DNA metabolism, DNA-protein binding interactions, and they even provide new leads for therapeutic strategies. Nucleoside analogs can deliver bioorthogonal functional groups into chromatin via cellular metabolic pathways, however, insufficient phosphorylation by endogenous kinases often limits the efficiency of their incorporation.
Even when successfully metabolized into biopolymers, steric hindrance of the modified nucleotide by chromatin can inhibit subsequent click reactions. In this chapter, we describe methods that overcome these limitations. Nucleotide monophosphate triesterers can bypass the need for cellular nucleoside kinase activity and thereby enable efficient incorporation of azide groups into cellular DNA.
Steric access to and modification of the azide groups within natively folded chromatin can then be accomplished using a bioorthogonal „intercalating reagent“ comprised of a cationic Sondheimer diyne that reversibly intercalates into duplexes where it undergoes tandem, strain-promoted cross-linking of two azides to give DNA-DNA interstrand crosslinks or DNA-fluorophore conjugation, depending on the relative number and spatial orientation of the azide groups in the DNA.

Polar Isotactic and Syndiotactic Polypropylenes via Organo-zirconium-Catalyzed Masking-Reagent-Free Propylene + Amino-Olefin Copolymerization

Polar functionalized isotactic and syndiotactic polypropylenes (PPs) are synthesized by direct, masking reagent-free propylene + amino-olefin (AO, CH 2 =CH(CH 2 ) x N n Pr 2 , x = 2, 3, 6) copolymerizations using the activated precatalysts rac -[Me 2 Si(indenyl) 2 ]ZrMe 2 and [Me 2 C(Cp)(fluorenyl)]ZrMe 2 , respectively. Polymerization activities at 25 °C are as high as 4208 and 535 kg/(mol·h·atm) with AO incorporation up to 4.0 mol% and 1.6 mol%, respectively.
Remarkably, introducing the amino-olefin comonomers significantly enhances stereoselection for both isotactic ( mmmm : 59.5% → 91.0%) and syndiotactic ( rrrr : 66.3% → 81.3%) products.

Taq DNA polymerase
BT10103 2000U
EUR 200.4
Description: High quality Taq polymerase for different PCR variations and downstream applications.

Taq DNA Polymerase
9001-2500 each
EUR 614.4

Taq DNA Polymerase
9001-500 each
EUR 229.2

Taq DNA Polymerase
L7051001 1000 unit
EUR 159

Taq DNA Polymerase
L7051200 200 unit
EUR 41

Taq DNA Polymerase (3000U)
9K-001-0002 3000U
EUR 582

Taq DNA Polymerase (6000U)
9K-001-0033 6000U
EUR 1234.5

Taq DNA Polymerase (1000U)
9K-001-0035 1000U
EUR 418.62

Taq DNA Polymerase (500U)
9K-001-0001 500U
EUR 209.29

Taq HS DNA Polymerase
P132-d1 500 U
EUR 38.28

Taq HS DNA Polymerase
P132-d2 1,000 U
EUR 71.34

Taq HS DNA Polymerase
P132-d3 5,000 U
EUR 324.8

Taq DNA polymerase (+dNTPs)
02-001 200U
EUR 183.6
Description: The Taq DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (+dNTPs)
02-001-5 5×200U
EUR 308.4
Description: The Taq DNA polymerase (+dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (-dNTPs)
02-011 200U
EUR 168
Description: The Taq DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Taq DNA polymerase (-dNTPs)
02-011-5 5×200U
EUR 261.6
Description: The Taq DNA polymerase (-dNTPs) is available in Europe and for worldwide shipping via Gentaur.

Maximo Taq DNA Polymerase
S101 500 units
EUR 55.2

Maximo Taq DNA Polymerase
S102 5x500 units
EUR 128.4

Maximo Taq DNA Polymerase
S103 20x500 units
EUR 393.6

Taq DNA Polymerase, 5units/㎕
T2200-050 500units
EUR 157.2

Taq DNA Polymerase, 5units/㎕
T2200-100 2x500 units
EUR 230.4

Taq DNA Polymerase, 5units/㎕
T2200-200 4x500 units
EUR 375.6

Hotstart Taq DNA Polymerase
L7052001 1000 units
EUR 567

Hotstart Taq DNA Polymerase
L7052250 250 units
EUR 159

Champagne Taq DNA Polymerase
P122-d1 500 U (2.5 U/μl)
EUR 212.4

Champagne Taq DNA Polymerase
P122-d2 500 U (5 U/μl)
EUR 212.4

Champagne Taq DNA Polymerase
P122-d3 500 U (10 U/μl)
EUR 212.4

ACTaq? Taq DNA Polymerase, 1000U
E2100-1000U each
EUR 260.4

Taq DNA Polymerase - 5,000 units
3245 1/EA
EUR 620.4

Recombinant Taq Dna Polymerase
27079804 EACH
EUR 117.6

Recombinant Taq Dna Polymerase
27079806 EACH
EUR 639.6

Taq DNA Polymerase (Recombinant)
abx073521-10000U 10000 U
EUR 710.4

Taq DNA Polymerase (Recombinant)
abx073521-1000U 1000 U
EUR 276

Taq DNA Polymerase (Recombinant)
abx073521-3000U 3000 U
EUR 393.6

Recombinant Taq DNA Polymerase
7-03634 1,000U Ask for price

Recombinant Taq DNA Polymerase
7-03635 3,000U Ask for price

Recombinant Taq DNA Polymerase
7-03636 10,000U Ask for price

ACTaq? Taq DNA Polymerase, 250U
E2100-250U each
EUR 122.4

Taq Plus DNA Polymerase
P201-01 250 U
EUR 147.6

Taq Plus DNA Polymerase
P201-02 1000 U
EUR 213.6

Taq Plus DNA Polymerase
P201-03 3000 U
EUR 382.8

Taq DNA Polymerase, 5u/ul
B0089(D0089) 5X200U
EUR 112.2

TaqFast DNA Polymerase (PCR)
G277 250 U (50 ul)
EUR 87.6

TaqFast DNA Polymerase (PCR)
G278 1000 U (200 ul)
EUR 160.8

Genorise® Taq DNA Polymerase
GR108007 200 tests
EUR 230

YEA taq DNA Polymerase wiodNTP
FYT011-500U 500U Ask for price

Maximo H-SPlus Taq DNA Polymerase (for Hot-Start PCR)
S400 200 units
EUR 86.4

Maximo H-SPlus Taq DNA Polymerase (for Hot-Start PCR)
S410 1000 units
EUR 231.6

Recombinant (E.Coli) Taq DNA Polymerase
RP-394 1000 IU
EUR 196.8

Taq DNA Polymerase Polyclonal Antibody
7018-100 each
EUR 424.8

Taq DNA Polymerase Polyclonal Antibody
7018-30T each
EUR 175.2

Taq DNA Polymerase, 5 units/µl
ABP-PP-ERTQ001 1000U Ask for price

Taq DNA Polymerase, 5 units/µl
ABP-PP-ERTQ100 100U Ask for price

Taq DNA Polymerase, 5 units/µl
ABP-PP-ERTQ200 200U Ask for price

Taq DNA Polymerase, 5 units/µl
ABP-PP-ERTQ500 500U Ask for price

YEA taq DNA Polymerase wi dNTP
FYT001-500U 500U Ask for price

ACTaq? Taq Blue DNA Polymerase, 1000U
E2100B-1000U each
EUR 272.4

Taq DNA Polymerase (Mg2+ plus Buffer)
P101-01 1000 U
EUR 145.2

Taq DNA Polymerase (Mg2+ plus Buffer)
P101-02 5000 U
EUR 231.6

Taq DNA Polymerase (Mg2+ plus Buffer)
P101-03 10000 U
EUR 314.4

Taq DNA Polymerase (Mg2+ free Buffer)
P102-01 1000 U
EUR 145.2

Taq DNA Polymerase (Mg2+ free Buffer)
P102-02 5000 U
EUR 231.6

Taq DNA Polymerase (Mg2+ free Buffer)
P102-03 10000 U
EUR 314.4

ACTaq? Taq Blue DNA Polymerase, 250U
E2100B-250U each
EUR 126

Taq DNA polymerase (TQ21) , DNA Aptamer, unlabeled
AD-146-U Custom Ask for price

Cheetah Hot Start Taq DNA Polymerase
29050 500EU
EUR 355.2
Description: Minimum order quantity: 1 unit of 500EU

Taq Plus DNA Polymerase, 5u/ul
D0090 200U
EUR 94.8

Taq Plus DNA Polymerase (Recombinant)
abx073522-2500U 2.500 U
EUR 710.4

Taq Plus DNA Polymerase (Recombinant)
abx073522-250U 250 U
EUR 276

Taq Plus DNA Polymerase (Recombinant)
abx073522-750U 750 U
EUR 393.6

Recombinant Taq Plus DNA Polymerase
7-03631 250U Ask for price

Recombinant Taq Plus DNA Polymerase
7-03632 750U Ask for price

Recombinant Taq Plus DNA Polymerase
7-03633 2,500U Ask for price

Taq HS DNA Polymerase (Glycerol-free)
QL101-01 1,000 U
EUR 71.2

Taq HS DNA Polymerase (Glycerol-free)
QL101-02 5,000 U
EUR 324.8

Taq HS DNA Polymerase (Glycerol-free)
QL101-03 50,000 U
EUR 2900

Taq DNA Polymerase, 5units/㎕ , Bulk Packing
T2200-B01 10,000 units
EUR 1388.4

Taq DNA Polymerase, 5units/㎕ , Bulk Packing
T2200-B05 5x10,000 units
EUR 6540

Taq DNA polymerase (TQ21) , DNA Aptamer, Biotinylated
AD-146-B Custom Ask for price

amfiSure Hot-Start Taq DNA Polymerase
P0322-010 100 units
EUR 176.4

amfiSure Hot-Start Taq DNA Polymerase
P0322-025 250 units
EUR 273.6

3G HotStart Taq DNA Polymerase (5u/ul)
3GHST81 5x500U
EUR 896.24

Taq DNA Polymerase with dNTP Mix (6000U)
9K-001-0018 6000U
EUR 1536.74

Taq DNA Polymerase with dNTP Mix (500U)
9K-001-0031 500U
EUR 351.28

Taq DNA Polymerase with dNTP Mix (3000U)
9K-001-0032 3000U
EUR 1088.87

Taq DNA Polymerase with dNTP Mix (1000U)
9K-001-0034 1000U
EUR 518.84

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